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documentation waypoint
2009-12-21 11:41:45 -05:00
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
added yes, no, on and off as boolean aliases and a nice aliases section to the docs
2009-12-23 20:24:55 -05:00
<title>CoffeeScript</title>
documentation waypoint
2009-12-21 11:41:45 -05:00
<link rel="stylesheet" type="text/css" href="documentation/css/docs.css" />
<link rel="stylesheet" type="text/css" href="documentation/css/idle.css" />
fancy new fullscreen version of 'Try CoffeeScript'
2010-02-27 02:21:26 -05:00
<link rel="shortcut icon" href="documentation/images/favicon.ico" />
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
</head>
Bumping site.
2010-12-12 21:41:04 -05:00
<body>
one more documentation waypoint, now with running for Try CoffeeScript, and a recompiled Underscore.coffee -- wordsmithing next
2010-02-21 16:36:34 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<div id="fadeout"></div>
<div id="flybar">
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<a id="logo" href="#top"> </a>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<div class="navigation toc">
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<div class="button">
Table of Contents
</div>
Bumping site.
2010-12-12 21:41:04 -05:00
<div class="contents menu">
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<a href="#overview">Overview</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#installation">Installation and Usage</a>
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<a href="#language">Language Reference</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#whitespace">Significant Whitespace</a>
<a href="#functions">Functions and Invocation</a>
<a href="#objects_and_arrays">Objects and Arrays</a>
<a href="#lexical_scope">Lexical Scoping and Variable Safety</a>
updating docco to better reflect lack of explicit ternaries. Issue #510
2010-07-16 22:44:07 -04:00
<a href="#conditionals">If, Else, Unless, and Conditional Assignment</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#aliases">Aliases</a>
<a href="#splats">Splats...</a>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<a href="#while">While, Until, and Loop</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#comprehensions">Comprehensions (Arrays, Objects, and Ranges)</a>
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
<a href="#slices">Array Slicing and Splicing</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#expressions">Everything is an Expression</a>
<a href="#existence">The Existential Operator</a>
updating documentation for classes
2010-02-27 20:12:47 -05:00
<a href="#classes">Classes, Inheritance, and Super</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#pattern_matching">Pattern Matching</a>
<a href="#fat_arrow">Function Binding</a>
<a href="#embedded">Embedded JavaScript</a>
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
<a href="#switch">The Switch Statement</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#try">Try/Catch/Finally</a>
<a href="#comparisons">Chained Comparisons</a>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<a href="#strings">String Interpolation, Heredocs, and Block Comments</a>
<a href="#regexes">Extended Regular Expressions</a>
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
<a href="#cake">Cake, and Cakefiles</a>
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
<a href="#scripts">"text/coffeescript" Script Tags</a>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<a href="#examples">Examples</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#resources">Resources</a>
adding webchat to the doc page
2010-04-10 13:42:39 -04:00
<a href="#webchat">Web Chat (IRC)</a>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<a href="#change_log">Change Log</a>
</div>
</div>
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<div class="navigation try">
<div class="button">
Try CoffeeScript
</div>
<div class="contents repl_wrapper">
Bumping site.
2010-12-12 21:41:04 -05:00
<div class="repl_bridge"></div>
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<div class="code">
Bumping site.
2010-12-12 21:41:04 -05:00
<div class="screenshadow tl"></div>
<div class="screenshadow tr"></div>
<div class="screenshadow bl"></div>
<div class="screenshadow br"></div>
<div id="repl_source_wrap">
<textarea id="repl_source" rows="100">alert "Hello CoffeeScript!"</textarea>
</div>
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<pre id="repl_results"></pre>
Bumping site.
2010-12-12 21:41:04 -05:00
<div class="minibutton dark run">Run</div>
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<br class="clear" />
</div>
</div>
</div>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<div class="navigation annotated">
<div class="button">
Annotated Source
</div>
Bumping site.
2010-12-12 21:41:04 -05:00
<div class="contents menu">
doc tweaks
2010-03-08 09:13:15 -05:00
<a href="documentation/docs/grammar.html">Grammar Rules &mdash; src/grammar</a>
<a href="documentation/docs/lexer.html">Lexing Tokens &mdash; src/lexer</a>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<a href="documentation/docs/rewriter.html">The Rewriter &mdash; src/rewriter</a>
<a href="documentation/docs/nodes.html">The Syntax Tree &mdash; src/nodes</a>
<a href="documentation/docs/scope.html">Lexical Scope &mdash; src/scope</a>
removing arguments-to-arrays from the docs
2010-03-15 23:53:43 -04:00
<a href="documentation/docs/helpers.html">Helpers &amp; Utility Functions &mdash; src/helpers</a>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<a href="documentation/docs/coffee-script.html">The CoffeeScript Module &mdash; src/coffee-script</a>
<a href="documentation/docs/cake.html">Cake &amp; Cakefiles &mdash; src/cake</a>
<a href="documentation/docs/command.html">"coffee" Command-Line Utility &mdash; src/command</a>
<a href="documentation/docs/optparse.html">Option Parsing &mdash; src/optparse</a>
<a href="documentation/docs/repl.html">Interactive REPL &mdash; src/repl</a>
</div>
</div>
hide the error div on initial page load
2010-02-25 20:48:54 -05:00
<div id="error" style="display:none;"></div>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
</div>
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
<div class="container">
waypoint on new coffeescript docs --they're coming along nicely
2010-02-21 16:13:09 -05:00
<span class="bookmark" id="top"></span>
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
<p>
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
<b>CoffeeScript is a little language that compiles into JavaScript.</b> Underneath
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
all of those embarrassing braces and semicolons, JavaScript has always had
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
a gorgeous object model at its heart. CoffeeScript is an attempt to expose
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
the good parts of JavaScript in a simple way.
documentation waypoint
2009-12-21 11:41:45 -05:00
</p>
<p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
The golden rule of CoffeeScript is: <i>"It's just JavaScript"</i>. The code
compiles one-to-one into the equivalent JS, and there is
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
no interpretation at runtime. You can use any existing JavaScript library
seamlessly (and vice-versa). The compiled output is readable and pretty-printed,
passes through <a href="http://www.javascriptlint.com/">JavaScript Lint</a>
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
without warnings, and runs in every JavaScript implementation.
documentation waypoint
2009-12-21 11:41:45 -05:00
</p>
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
minor doc updates -- let's try pulling in the underscore test suite
2010-01-04 19:15:24 -05:00
<p>
<b>Latest Version:</b>
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<a href="http://github.com/jashkenas/coffee-script/tarball/0.9.6">0.9.6</a>
minor doc updates -- let's try pulling in the underscore test suite
2010-01-04 19:15:24 -05:00
</p>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<h2>
<span id="overview" class="bookmark"></span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
Overview
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
</h2>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<p><i>CoffeeScript on the left, compiled JavaScript output on the right.</i></p>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<div class='code'><pre class="idle"><span class="Comment"><span class="Comment">#</span> Assignment:</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
number <span class="Keyword">=</span> <span class="Number">42</span>
opposite <span class="Keyword">=</span> <span class="BuiltInConstant">true</span>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="Comment"><span class="Comment">#</span> Conditions:</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
number <span class="Keyword">=</span> <span class="Keyword">-</span><span class="Number">42</span> <span class="Keyword">if</span> opposite
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="Comment"><span class="Comment">#</span> Functions:</span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">square </span><span class="Keyword">=</span> <span class="FunctionArgument">(x)</span> <span class="Storage">-&gt;</span> x <span class="Keyword">*</span> x
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="Comment"><span class="Comment">#</span> Arrays:</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
list <span class="Keyword">=</span> [<span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>]
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="Comment"><span class="Comment">#</span> Objects:</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
math <span class="Keyword">=</span>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
root: Math.sqrt
square: square
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">cube</span><span class="Keyword">:</span> <span class="FunctionArgument">(x)</span> <span class="Storage">-&gt;</span> x <span class="Keyword">*</span> square x
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
more docs
2010-01-05 00:34:18 -05:00
<span class="Comment"><span class="Comment">#</span> Splats:</span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">race </span><span class="Keyword">=</span> <span class="FunctionArgument">(winner, runners...)</span> <span class="Storage">-&gt;</span>
changed the docs for optional parens
2010-01-25 00:14:00 -05:00
print winner, runners
more docs
2010-01-05 00:34:18 -05:00
<span class="Comment"><span class="Comment">#</span> Existence:</span>
changed the docs for optional parens
2010-01-25 00:14:00 -05:00
alert <span class="String"><span class="String">&quot;</span>I knew it!<span class="String">&quot;</span></span> <span class="Keyword">if</span> elvis<span class="Keyword">?</span>
more docs
2010-01-05 00:34:18 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="Comment"><span class="Comment">#</span> Array comprehensions:</span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
cubes <span class="Keyword">=</span> (math.cube num <span class="Keyword">for</span> num <span class="Keyword">in</span> list)
</pre><pre class="idle"><span class="Storage">var</span> cubes, list, math, num, number, opposite, race, square, _i, _len, _results;
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
<span class="Storage">var</span> __slice <span class="Keyword">=</span> <span class="LibraryClassType">Array</span>.<span class="LibraryConstant">prototype</span>.slice;
doc update
2010-02-25 17:18:28 -05:00
number <span class="Keyword">=</span> <span class="Number">42</span>;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
opposite <span class="Keyword">=</span> <span class="BuiltInConstant">true</span>;
<span class="Keyword">if</span> (opposite) {
doc update
2010-02-25 17:18:28 -05:00
number <span class="Keyword">=</span> <span class="Keyword">-</span><span class="Number">42</span>;
}
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<span class="FunctionName">square</span> = <span class="Storage">function</span>(<span class="FunctionArgument">x</span>) {
doc update
2010-02-25 17:18:28 -05:00
<span class="Keyword">return</span> x <span class="Keyword">*</span> x;
};
list <span class="Keyword">=</span> [<span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>];
math <span class="Keyword">=</span> {
root: <span class="LibraryClassType">Math</span>.sqrt,
square: square,
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<span class="FunctionName">cube</span>: <span class="Storage">function</span>(<span class="FunctionArgument">x</span>) {
doc update
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<span class="Keyword">return</span> x <span class="Keyword">*</span> square(x);
}
};
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">race</span> = <span class="Storage">function</span>() {
<span class="Storage">var</span> runners, winner;
winner <span class="Keyword">=</span> arguments[<span class="Number">0</span>], runners <span class="Keyword">=</span> <span class="Number">2</span> <span class="Keyword">&lt;=</span> arguments.<span class="LibraryConstant">length</span> ? __slice.<span class="LibraryFunction">call</span>(arguments, <span class="Number">1</span>) : [];
doc update
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<span class="Keyword">return</span> <span class="LibraryFunction">print</span>(winner, runners);
};
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="Keyword">if</span> (<span class="Keyword">typeof</span> elvis <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>undefined<span class="String">&quot;</span></span> <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> elvis <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">null</span>) {
doc update
2010-02-25 17:18:28 -05:00
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>I knew it!<span class="String">&quot;</span></span>);
}
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
cubes <span class="Keyword">=</span> (<span class="Storage">function</span>() {
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
_results <span class="Keyword">=</span> [];
<span class="Keyword">for</span> (_i <span class="Keyword">=</span> <span class="Number">0</span>, _len <span class="Keyword">=</span> list.<span class="LibraryConstant">length</span>; _i <span class="Keyword">&lt;</span> _len; _i<span class="Keyword">++</span>) {
num <span class="Keyword">=</span> list[_i];
_results.<span class="LibraryFunction">push</span>(math.cube(num));
}
<span class="Keyword">return</span> _results;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
}());
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example1 = "# Assignment:\nnumber = 42\nopposite = true\n\n# Conditions:\nnumber = -42 if opposite\n\n# Functions:\nsquare = (x) -> x * x\n\n# Arrays:\nlist = [1, 2, 3, 4, 5]\n\n# Objects:\nmath =\n root: Math.sqrt\n square: square\n cube: (x) -> x * square x\n\n# Splats:\nrace = (winner, runners...) ->\n print winner, runners\n\n# Existence:\nalert \"I knew it!\" if elvis?\n\n# Array comprehensions:\ncubes = (math.cube num for num in list)\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example1);'>Load</div><div class='minibutton ok' onclick='javascript: var cubes, list, math, num, number, opposite, race, square, _i, _len, _results;
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
var __slice = Array.prototype.slice;
doc update
2010-02-25 17:18:28 -05:00
number = 42;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
opposite = true;
if (opposite) {
doc update
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number = -42;
}
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
square = function(x) {
doc update
2010-02-25 17:18:28 -05:00
return x * x;
};
list = [1, 2, 3, 4, 5];
math = {
root: Math.sqrt,
square: square,
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
cube: function(x) {
doc update
2010-02-25 17:18:28 -05:00
return x * square(x);
}
};
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
race = function() {
var runners, winner;
winner = arguments[0], runners = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
doc update
2010-02-25 17:18:28 -05:00
return print(winner, runners);
};
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
if (typeof elvis != "undefined" && elvis !== null) {
doc update
2010-02-25 17:18:28 -05:00
alert("I knew it!");
}
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
cubes = (function() {
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
_results = [];
for (_i = 0, _len = list.length; _i < _len; _i++) {
num = list[_i];
_results.push(math.cube(num));
}
return _results;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
}());;alert(cubes);'>run: cubes</div><br class='clear' /></div>
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<h2>
<span id="installation" class="bookmark"></span>
Installation and Usage
</h2>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
added some execution test
2009-12-24 03:12:07 -05:00
<p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
The CoffeeScript compiler
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<a href="documentation/docs/grammar.html">is itself written in CoffeeScript</a>,
using the <a href="http://jison.org">Jison parser generator</a>. The command-line
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
version of <tt>coffee</tt> is available as a <a href="http://nodejs.org/">Node.js</a> utility.
The core compiler however, does not depend on Node, and can be run in any
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
JavaScript environment, or in the browser (see "Try CoffeeScript", above).
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
</p>
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
<p>
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
To install, first make sure you have a working copy of the latest tagged version of
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<a href="http://nodejs.org/">Node.js</a>, and <a href="http://npmjs.org">NPM</a>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
(the Node Package Manager). You can then install CoffeeScript with NPM:
docs for the NPM install
2010-06-28 01:06:53 -04:00
</p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
docs for the NPM install
2010-06-28 01:06:53 -04:00
<pre>
preparing documentation for 0.9.5
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npm install coffee-script</pre>
docs for the NPM install
2010-06-28 01:06:53 -04:00
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
If you'd prefer to install the latest master version of CoffeeScript, you
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
can clone the CoffeeScript
<a href="http://github.com/jashkenas/coffee-script">source repository</a>
from GitHub, or download
<a href="http://github.com/jashkenas/coffee-script/tarball/master">the source</a> directly.
To install the CoffeeScript compiler system-wide
under <tt>/usr/local</tt>, open the directory and run:
</p>
<pre>
sudo bin/cake install</pre>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
docs for the NPM install
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<p>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
Both of these provide the <tt>coffee</tt> command, which can execute
Switching default arguments to use an if instead of an and, more documentation.
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coffee scripts, compile <tt>.coffee</tt> files into <tt>.js</tt>, and
provides an interactive REPL. The <tt>coffee</tt> command takes the
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
following options:
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</p>
<table>
<tr>
making --run the default option for consistency. If you want to save the file, use -c or --compile.
2010-02-27 00:38:04 -05:00
<td><code>-c, --compile</code></td>
bumping to 0.1.3 ... here we go
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<td>
making --run the default option for consistency. If you want to save the file, use -c or --compile.
2010-02-27 00:38:04 -05:00
Compile a <tt>.coffee</tt> script into a <tt>.js</tt> JavaScript file
of the same name.
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
</td>
</tr>
<tr>
making --run the default option for consistency. If you want to save the file, use -c or --compile.
2010-02-27 00:38:04 -05:00
<td width="25%"><code>-i, --interactive</code></td>
bumping to 0.1.3 ... here we go
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<td>
CoffeeScript 0.5.5, with string interpolation and internal documentation
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Launch an interactive CoffeeScript session to try short snippets.
More pleasant if wrapped with
mention rlwrap in the docs on --interactive
2010-03-07 18:19:41 -05:00
<a href="http://utopia.knoware.nl/~hlub/uck/rlwrap/rlwrap.html">rlwrap</a>.
bumping to 0.1.3 ... here we go
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</td>
</tr>
<tr>
<td><code>-o, --output [DIR]</code></td>
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<td>
Write out all compiled JavaScript files into the specified directory.
making --run the default option for consistency. If you want to save the file, use -c or --compile.
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Use in conjunction with <tt>--compile</tt> or <tt>--watch</tt>.
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</td>
</tr>
<tr>
<td><code>-w, --watch</code></td>
<td>
first draft of docs are done
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Watch the modification times of the coffee-scripts, recompiling as
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soon as a change occurs.
</td>
</tr>
<tr>
<td><code>-p, --print</code></td>
<td>
Instead of writing out the JavaScript as a file, print it
directly to <b>stdout</b>.
</td>
</tr>
<tr>
<td><code>-l, --lint</code></td>
<td>
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
If the <tt>jsl</tt>
(<a href="http://www.javascriptlint.com/">JavaScript Lint</a>)
new version of the docs for 0.5.0 is done, or close to it.
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command is installed, use it
bumping to 0.1.3 ... here we go
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to check the compilation of a CoffeeScript file. (Handy in
more additions to the documentation for 0.9.0
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conjunction with <br /> <tt>--watch</tt>)
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</td>
</tr>
adding documentation for --stdio
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<tr>
<td><code>-s, --stdio</code></td>
<td>
Pipe in CoffeeScript to STDIN and get back JavaScript over STDOUT.
Good for use with processes written in other languages. An example:<br />
little tweaks to the docs
2010-03-08 06:40:54 -05:00
<tt>cat src/cake.coffee | coffee -sc</tt>
adding documentation for --stdio
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</td>
</tr>
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<tr>
<td><code>-e, --eval</code></td>
<td>
Compile and print a little snippet of CoffeeScript directly from the
little tweaks to the docs
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command line. For example:<br /><tt>coffee -e "puts num for num in [10..1]"</tt>
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</td>
</tr>
CoffeeScript 0.9.1 is on the books.
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<tr>
<td><code>-r, --require</code></td>
<td>
Load a library before compiling or executing your script. Can be used
to hook in to the compiler (to add Growl notifications, for example).
</td>
</tr>
the --no-wrap option now disables top-level var declarations
2009-12-24 20:37:24 -05:00
<tr>
765: -b/--bare <- --no-wrap
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<td><code>-b, --bare</code></td>
the --no-wrap option now disables top-level var declarations
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<td>
more docs for 0.2.2
2010-01-10 17:14:20 -05:00
Compile the JavaScript without the top-level function safety wrapper.
node conversion finished, narwhal removed.
2010-01-29 23:30:54 -05:00
(Used for CoffeeScript as a Node.js module.)
more docs for 0.2.2
2010-01-10 17:14:20 -05:00
</td>
</tr>
<tr>
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
<td><code>-t, --tokens</code></td>
more docs for 0.2.2
2010-01-10 17:14:20 -05:00
<td>
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
Instead of parsing the CoffeeScript, just lex it, and print out the
CoffeeScript 0.9.0
2010-08-04 23:14:34 -04:00
token stream: <tt>[IDENTIFIER square] [ASSIGN =] [PARAM_START (]</tt> ...
the --no-wrap option now disables top-level var declarations
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</td>
</tr>
first draft of docs are done
2009-12-24 02:01:39 -05:00
<tr>
updating docs with the new flags
2010-02-25 18:43:33 -05:00
<td><code>-n, --nodes</code></td>
first draft of docs are done
2009-12-24 02:01:39 -05:00
<td>
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
Instead of compiling the CoffeeScript, just lex and parse it, and print
out the parse tree:
doc updates
2010-02-22 17:14:51 -05:00
<pre class="no_bar">
Expressions
Assign
Value "square"
Code "x"
Op *
Value "x"
Value "x"</pre>
first draft of docs are done
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</td>
</tr>
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</table>
<p>
<b>Examples:</b>
</p>
<pre>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
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coffee -o lib/ -c src/
changed bin/coffee-script to bin/coffee
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coffee --watch --lint experimental.coffee
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
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coffee --print app/scripts/*.coffee > concatenation.js
coffee --bare --print --stdio</pre>
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first working draft of the new documentation
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<h2>
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<span id="language" class="bookmark"></span>
Language Reference
first working draft of the new documentation
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</h2>
working 'Try CoffeeScript' in the docs
2010-02-13 16:23:03 -05:00
documentation waypoint
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<p>
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<i>
docs
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This reference is structured so that it can be read from top to bottom,
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if you like. Later sections use ideas and syntax previously introduced.
first draft of docs are done
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Familiarity with JavaScript is assumed.
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In all of the following examples, the source CoffeeScript is provided on
the left, and the direct compilation into JavaScript is on the right.
</i>
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</p>
documentation for Cake and Cakefiles
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new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
<p>
<i>
Many of the examples can be run (where it makes sense) by pressing the "run"
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
button towards the bottom right. You can also paste examples into
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
"Try CoffeeScript" in the toolbar, and play with them from there.
</i>
first working draft of the new documentation
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<p>
<span id="whitespace" class="bookmark"></span>
first pass at 0.2.0 docs
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<b class="header">Significant Whitespace</b>
CoffeeScript uses Python-style significant whitespace: You don't need to
use semicolons <tt>;</tt> to terminate expressions, ending
the line will do just as well. Semicolons can still be used to fit
multiple expressions onto a single line. Instead of using curly braces
tweaking docs
2010-01-05 00:19:22 -05:00
<tt>{ }</tt> to delimit blocks of code (like <a href="#functions">functions</a>,
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
<a href="#conditionals">if-statements</a>,
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
<a href="#switch">switch</a>, and <a href="#try">try/catch</a>),
use indentation.
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2009-12-23 19:42:18 -05:00
</p>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<p>
new version of the docs for 0.5.0 is done, or close to it.
2010-02-21 17:30:41 -05:00
You don't need to use parentheses to invoke a function if you're passing
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
arguments:<br /><tt>print "coffee"</tt>. The implicit call wraps forward
to the end of the line or block expression.
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
</p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
ellipsis is the new splat
2010-01-05 21:40:36 -05:00
<p>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
Within object literals, indentation can be used to create nested objects.
ellipsis is the new splat
2010-01-05 21:40:36 -05:00
</p>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="functions" class="bookmark"></span>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<b class="header">Functions</b>
bumping to 0.1.3 ... here we go
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Functions are defined by a list of parameters, an arrow, and the
removing an errant mention of named functions.
2010-07-11 10:44:33 -04:00
function body. The empty function looks like this: <tt>-></tt>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<div class='code'><pre class="idle"><span class="FunctionName">square </span><span class="Keyword">=</span> <span class="FunctionArgument">(x)</span> <span class="Storage">-&gt;</span> x <span class="Keyword">*</span> x
<span class="FunctionName">cube </span><span class="Keyword">=</span> <span class="FunctionArgument">(x)</span> <span class="Storage">-&gt;</span> square(x) <span class="Keyword">*</span> x
docs for assignment-as-expression
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</pre><pre class="idle"><span class="Storage">var</span> cube, square;
CoffeeScript 0.6.2
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<span class="FunctionName">square</span> = <span class="Storage">function</span>(<span class="FunctionArgument">x</span>) {
documentation waypoint
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<span class="Keyword">return</span> x <span class="Keyword">*</span> x;
};
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<span class="FunctionName">cube</span> = <span class="Storage">function</span>(<span class="FunctionArgument">x</span>) {
documentation waypoint
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<span class="Keyword">return</span> square(x) <span class="Keyword">*</span> x;
};
Bumping site.
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</pre><script>window.example2 = "square = (x) -> x * x\ncube = (x) -> square(x) * x\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example2);'>Load</div><div class='minibutton ok' onclick='javascript: var cube, square;
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
square = function(x) {
documentation waypoint
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return x * x;
};
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
cube = function(x) {
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return square(x) * x;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
};;alert(cube(5));'>run: cube(5)</div><br class='clear' /></div>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<p>
Functions may also have default values for arguments.
</p>
<div class='code'><pre class="idle"><span class="FunctionName">fill </span><span class="Keyword">=</span> <span class="FunctionArgument">(container, liquid = &quot;coffee&quot;)</span> <span class="Storage">-&gt;</span>
<span class="String"><span class="String">&quot;</span>Filling the <span class="String"><span class="String">#{</span>container<span class="String">}</span></span> with <span class="String"><span class="String">#{</span>liquid<span class="String">}</span></span>...<span class="String">&quot;</span></span>
</pre><pre class="idle"><span class="Storage">var</span> fill;
<span class="FunctionName">fill</span> = <span class="Storage">function</span>(<span class="FunctionArgument">container, liquid</span>) {
<span class="Keyword">if</span> (liquid <span class="Keyword">==</span> <span class="BuiltInConstant">null</span>) {
liquid <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>coffee<span class="String">&quot;</span></span>;
}
<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>Filling the <span class="String">&quot;</span></span> <span class="Keyword">+</span> container <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> with <span class="String">&quot;</span></span> <span class="Keyword">+</span> liquid <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span>...<span class="String">&quot;</span></span>;
};
Bumping site.
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</pre><script>window.example3 = "fill = (container, liquid = \"coffee\") ->\n \"Filling the #{container} with #{liquid}...\"\n\n\n\n\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example3);'>Load</div><div class='minibutton ok' onclick='javascript: var fill;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
fill = function(container, liquid) {
if (liquid == null) {
liquid = "coffee";
}
return "Filling the " + container + " with " + liquid + "...";
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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};;alert(fill("cup"));'>run: fill("cup")</div><br class='clear' /></div>
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first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="objects_and_arrays" class="bookmark"></span>
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<b class="header">Objects and Arrays</b>
Object and Array literals look very similar to their JavaScript cousins.
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
When each property is listed on its own line, the commas are
optional. Objects may be created using indentation instead of
explicit braces, similar to YAML.
broken waypoint, but fixed line numbers with the new JS comments
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</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">song <span class="Keyword">=</span> [<span class="String"><span class="String">&quot;</span>do<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>re<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>mi<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>fa<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>so<span class="String">&quot;</span></span>]
CoffeeScript 0.9.4
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singers <span class="Keyword">=</span> {Jagger: <span class="String"><span class="String">&quot;</span>Rock<span class="String">&quot;</span></span>, Elvis: <span class="String"><span class="String">&quot;</span>Roll<span class="String">&quot;</span></span>}
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
matrix <span class="Keyword">=</span> [
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
<span class="Number">1</span>, <span class="Number">0</span>, <span class="Number">1</span>
<span class="Number">0</span>, <span class="Number">0</span>, <span class="Number">1</span>
<span class="Number">1</span>, <span class="Number">1</span>, <span class="Number">0</span>
]
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
kids <span class="Keyword">=</span>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
brother:
name: <span class="String"><span class="String">&quot;</span>Max<span class="String">&quot;</span></span>
age: <span class="Number">11</span>
sister:
name: <span class="String"><span class="String">&quot;</span>Ida<span class="String">&quot;</span></span>
age: <span class="Number">9</span>
Bumping site.
2010-12-12 21:41:04 -05:00
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
</pre><pre class="idle"><span class="Storage">var</span> kids, matrix, singers, song;
docs for assignment-as-expression
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song <span class="Keyword">=</span> [<span class="String"><span class="String">&quot;</span>do<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>re<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>mi<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>fa<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>so<span class="String">&quot;</span></span>];
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
singers <span class="Keyword">=</span> {
CoffeeScript 0.9.0
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Jagger: <span class="String"><span class="String">&quot;</span>Rock<span class="String">&quot;</span></span>,
Elvis: <span class="String"><span class="String">&quot;</span>Roll<span class="String">&quot;</span></span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
};
first pass at 0.2.0 docs
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matrix <span class="Keyword">=</span> [<span class="Number">1</span>, <span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">0</span>, <span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">1</span>, <span class="Number">1</span>, <span class="Number">0</span>];
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
kids <span class="Keyword">=</span> {
brother: {
CoffeeScript 0.9.0
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name: <span class="String"><span class="String">&quot;</span>Max<span class="String">&quot;</span></span>,
more additions to the documentation for 0.9.0
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age: <span class="Number">11</span>
},
sister: {
CoffeeScript 0.9.0
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name: <span class="String"><span class="String">&quot;</span>Ida<span class="String">&quot;</span></span>,
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
age: <span class="Number">9</span>
}
};
Bumping site.
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</pre><script>window.example4 = "song = [\"do\", \"re\", \"mi\", \"fa\", \"so\"]\n\nsingers = {Jagger: \"Rock\", Elvis: \"Roll\"}\n\nmatrix = [\n 1, 0, 1\n 0, 0, 1\n 1, 1, 0\n]\n\nkids =\n brother:\n name: \"Max\"\n age: 11\n sister:\n name: \"Ida\"\n age: 9\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example4);'>Load</div><div class='minibutton ok' onclick='javascript: var kids, matrix, singers, song;
docs for assignment-as-expression
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song = ["do", "re", "mi", "fa", "so"];
ported and regenerated examples.
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singers = {
CoffeeScript 0.9.0
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Jagger: "Rock",
Elvis: "Roll"
ported and regenerated examples.
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};
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
matrix = [1, 0, 1, 0, 0, 1, 1, 1, 0];
kids = {
brother: {
CoffeeScript 0.9.0
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name: "Max",
more additions to the documentation for 0.9.0
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age: 11
},
sister: {
CoffeeScript 0.9.0
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name: "Ida",
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
age: 9
}
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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};;alert(song.join(","));'>run: song.join(",")</div><br class='clear' /></div>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<p>
In JavaScript, you can't use reserved words, like <tt>class</tt>, as properties
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
of an object, without quoting them as strings. CoffeeScript notices reserved words
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
used as keys in objects and quotes them for you, so you don't have to worry
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
about it (say, when using jQuery).
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
</p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<div class='code'><pre class="idle">$(<span class="String"><span class="String">'</span>.account<span class="String">'</span></span>).attr class: <span class="String"><span class="String">'</span>active<span class="String">'</span></span>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
Bumping site.
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log object.<span class="Storage">class</span>
preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Keyword">$</span>(<span class="String"><span class="String">'</span>.account<span class="String">'</span></span>).attr({
regenerating large swathes of the docs
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<span class="String"><span class="String">&quot;</span>class<span class="String">&quot;</span></span>: <span class="String"><span class="String">'</span>active<span class="String">'</span></span>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
});
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<span class="LibraryFunction">log</span>(object[<span class="String"><span class="String">&quot;</span>class<span class="String">&quot;</span></span>]);
Bumping site.
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</pre><script>window.example5 = "$('.account').attr class: 'active'\n\nlog object.class\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example5);'>Load</div><br class='clear' /></div>
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first working draft of the new documentation
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<p>
<span id="lexical_scope" class="bookmark"></span>
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<b class="header">Lexical Scoping and Variable Safety</b>
The CoffeeScript compiler takes care to make sure that all of your variables
first draft of docs are done
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are properly declared within lexical scope &mdash; you never need to write
<tt>var</tt> yourself.
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</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">outer <span class="Keyword">=</span> <span class="Number">1</span>
preparing documentation for 0.9.5
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<span class="FunctionName">changeNumbers </span><span class="Keyword">=</span> <span class="Keyword">-</span><span class="Keyword">&gt;</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
inner <span class="Keyword">=</span> <span class="Keyword">-</span><span class="Number">1</span>
outer <span class="Keyword">=</span> <span class="Number">10</span>
inner <span class="Keyword">=</span> changeNumbers()
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
</pre><pre class="idle"><span class="Storage">var</span> changeNumbers, inner, outer;
outer <span class="Keyword">=</span> <span class="Number">1</span>;
<span class="FunctionName">changeNumbers</span> = <span class="Storage">function</span>() {
<span class="Storage">var</span> inner;
inner <span class="Keyword">=</span> <span class="Keyword">-</span><span class="Number">1</span>;
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
<span class="Keyword">return</span> outer <span class="Keyword">=</span> <span class="Number">10</span>;
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};
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
inner <span class="Keyword">=</span> changeNumbers();
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example6 = "outer = 1\nchangeNumbers = ->\n inner = -1\n outer = 10\ninner = changeNumbers()"</script><div class='minibutton load' onclick='javascript: loadConsole(example6);'>Load</div><div class='minibutton ok' onclick='javascript: var changeNumbers, inner, outer;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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outer = 1;
changeNumbers = function() {
var inner;
inner = -1;
First draft of recompiling examples for 0.9.9
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return outer = 10;
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};
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
inner = changeNumbers();;alert(inner);'>run: inner</div><br class='clear' /></div>
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2009-12-23 19:42:18 -05:00
<p>
CoffeeScript 0.9.0
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Notice how all of the variable declarations have been pushed up to
first pass at 0.2.0 docs
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the top of the closest scope, the first time they appear.
updating documentation with correct variable names.
2010-07-23 12:34:54 -04:00
<b>outer</b> is not redeclared within the inner function, because it's
already in scope; <b>inner</b> within the function, on the other hand,
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
should not be able to change the value of the external variable of the same name, and
therefore has a declaration of its own.
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
adding documentation for var shadowing
2010-03-08 19:27:38 -05:00
<p>
This behavior is effectively identical to Ruby's scope for local variables.
CoffeeScript 0.5.6
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Because you don't have direct access to the <tt>var</tt> keyword,
it's impossible to shadow an outer variable on purpose, you may only refer
to it. So be careful that you're not reusing the name of an external
adding documentation for var shadowing
2010-03-08 19:27:38 -05:00
variable accidentally, if you're writing a deeply nested function.
</p>
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<p>
first draft of docs are done
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Although suppressed within this documentation for clarity, all
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CoffeeScript output is wrapped in an anonymous function:
<tt>(function(){ ... })();</tt> This safety wrapper, combined with the
automatic generation of the <tt>var</tt> keyword, make it exceedingly difficult
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
to pollute the global namespace by accident.
doc updates -- widened the code segments for the sake of the JavaScript
2010-01-17 18:33:31 -05:00
</p>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<p>
If you'd like to create top-level variables for other scripts to use,
attach them as properties on <b>window</b>, or on the <b>exports</b>
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
object in CommonJS. The <b>existential operator</b> (covered below), gives you a
doc updates -- widened the code segments for the sake of the JavaScript
2010-01-17 18:33:31 -05:00
reliable way to figure out where to add them, if you're targeting both
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
CommonJS and the browser: <tt>exports ? this</tt>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="conditionals" class="bookmark"></span>
updating docco to better reflect lack of explicit ternaries. Issue #510
2010-07-16 22:44:07 -04:00
<b class="header">If, Else, Unless, and Conditional Assignment</b>
got lexer balancing parens, indent/outdents, brackets, and curlies
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<b>If/else</b> statements can be written without the use of parentheses and
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
curly brackets. As with functions and other block expressions,
multi-line conditionals are delimited by indentation. There's also a handy
postfix form, with the <tt>if</tt> or <tt>unless</tt> at the end.
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2009-12-23 19:42:18 -05:00
</p>
doc tweaks
2009-12-24 04:38:32 -05:00
<p>
updating docco to better reflect lack of explicit ternaries. Issue #510
2010-07-16 22:44:07 -04:00
CoffeeScript can compile <b>if</b> statements into JavaScript expressions,
using the ternary operator when possible, and closure wrapping otherwise. There
is no explicit ternary statement in CoffeeScript &mdash; you simply use
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
a regular <b>if</b> statement on a single line.
doc tweaks
2009-12-24 04:38:32 -05:00
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">mood <span class="Keyword">=</span> greatlyImproved <span class="Keyword">if</span> singing
documentation waypoint
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getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> happy <span class="Keyword">and</span> knowsIt
clapsHands()
chaChaCha()
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<span class="Keyword">else</span>
showIt()
documentation waypoint
2009-12-21 11:41:45 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
date <span class="Keyword">=</span> <span class="Keyword">if</span> friday <span class="Keyword">then</span> sue <span class="Keyword">else</span> jill
documentation waypoint
2009-12-21 11:41:45 -05:00
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
options <span class="Keyword">or=</span> defaults
Bumping site.
2010-12-12 21:41:04 -05:00
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
</pre><pre class="idle"><span class="Storage">var</span> date, mood;
documentation waypoint
2009-12-21 11:41:45 -05:00
<span class="Keyword">if</span> (singing) {
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
mood <span class="Keyword">=</span> greatlyImproved;
documentation waypoint
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}
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> (happy <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> knowsIt) {
clapsHands();
chaChaCha();
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
} <span class="Keyword">else</span> {
showIt();
documentation waypoint
2009-12-21 11:41:45 -05:00
}
docs for assignment-as-expression
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date <span class="Keyword">=</span> friday ? sue : jill;
CoffeeScript 0.9.2
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options <span class="Keyword">||</span> (options <span class="Keyword">=</span> defaults);
Bumping site.
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</pre><script>window.example7 = "mood = greatlyImproved if singing\n\nif happy and knowsIt\n clapsHands()\n chaChaCha()\nelse\n showIt()\n\ndate = if friday then sue else jill\n\noptions or= defaults\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example7);'>Load</div><br class='clear' /></div>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="aliases" class="bookmark"></span>
first draft of docs are done
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<b class="header">Aliases</b>
Because the <tt>==</tt> operator frequently causes undesirable coercion,
is intransitive, and has a different meaning than in other languages,
CoffeeScript compiles <tt>==</tt> into <tt>===</tt>, and <tt>!=</tt> into
<tt>!==</tt>.
In addition, <tt>is</tt> compiles into <tt>===</tt>,
trading aint for isnt -- let's be serious
2009-12-24 20:21:20 -05:00
and <tt>isnt</tt> into <tt>!==</tt>.
first draft of docs are done
2009-12-24 02:01:39 -05:00
</p>
<p>
You can use <tt>not</tt> as an alias for <tt>!</tt>.
</p>
added and -> &&, or -> || to the docs (they were missing)
2009-12-24 17:37:30 -05:00
<p>
For logic, <tt>and</tt> compiles to <tt>&amp;&amp;</tt>, and <tt>or</tt>
into <tt>||</tt>.
</p>
changing switch/case to switch/when -- it's a better word
2009-12-24 04:33:59 -05:00
<p>
Instead of a newline or semicolon, <tt>then</tt> can be used to separate
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
conditions from expressions, in <b>while</b>,
changing switch/case to switch/when -- it's a better word
2009-12-24 04:33:59 -05:00
<b>if</b>/<b>else</b>, and <b>switch</b>/<b>when</b> statements.
</p>
first draft of docs are done
2009-12-24 02:01:39 -05:00
<p>
As in <a href="http://yaml.org/">YAML</a>, <tt>on</tt> and <tt>yes</tt>
are the same as boolean <tt>true</tt>, while <tt>off</tt> and <tt>no</tt> are boolean <tt>false</tt>.
</p>
<p>
For single-line statements, <tt>unless</tt> can be used as the inverse of <tt>if</tt>.
</p>
CoffeeScript 0.3.2, just in time for the Github feature
2010-02-08 10:58:49 -05:00
<p>
As a shortcut for <tt>this.property</tt>, you can use <tt>@property</tt>.
</p>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
You can use <tt>in</tt> to test for array presence, and <tt>of</tt> to
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
test for JavaScript object-key presence.
</p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<p>
All together now:
</p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<table class="definitions">
<tr><th>CoffeeScript</th><th>JavaScript</th></tr>
<tr><td><tt>is</tt></td><td><tt>===</tt></td></tr>
<tr><td><tt>isnt</tt></td><td><tt>!==</tt></td></tr>
<tr><td><tt>not</tt></td><td><tt>!</tt></td></tr>
<tr><td><tt>and</tt></td><td><tt>&amp;&amp;</tt></td></tr>
<tr><td><tt>or</tt></td><td><tt>||</tt></td></tr>
<tr><td><tt>true, yes, on</tt></td><td><tt>true</tt></td></tr>
<tr><td><tt>false, no, off</tt></td><td><tt>false</tt></td></tr>
<tr><td><tt>@, this</tt></td><td><tt>this</tt></td></tr>
<tr><td><tt>of</tt></td><td><tt>in</tt></td></tr>
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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<tr><td><tt>in</tt></td><td><i><small>no JS equivalent</small></i></td></tr>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
</table>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<div class='code'><pre class="idle">launch() <span class="Keyword">if</span> ignition <span class="Keyword">is</span> <span class="BuiltInConstant">on</span>
first draft of docs are done
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ported and regenerated examples.
2010-07-29 00:51:35 -04:00
volume <span class="Keyword">=</span> <span class="Number">10</span> <span class="Keyword">if</span> band <span class="Keyword">isnt</span> SpinalTap
first draft of docs are done
2009-12-24 02:01:39 -05:00
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
letTheWildRumpusBegin() <span class="Keyword">unless</span> answer <span class="Keyword">is</span> <span class="BuiltInConstant">no</span>
changing switch/case to switch/when -- it's a better word
2009-12-24 04:33:59 -05:00
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> car.speed <span class="Keyword">&lt;</span> limit <span class="Keyword">then</span> accelerate()
CoffeeScript 0.3.2, just in time for the Github feature
2010-02-08 10:58:49 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
winner <span class="Keyword">=</span> <span class="BuiltInConstant">yes</span> <span class="Keyword">if</span> pick <span class="Keyword">in</span> [<span class="Number">47</span>, <span class="Number">92</span>, <span class="Number">13</span>]
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
CoffeeScript 0.9.0
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print inspect <span class="String"><span class="String">&quot;</span>My name is <span class="String">&quot;</span></span> <span class="Keyword">+</span> <span class="Variable">@name</span>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
</pre><pre class="idle"><span class="Storage">var</span> volume, winner;
docs for assignment-as-expression
2009-12-26 02:17:34 -05:00
<span class="Keyword">if</span> (ignition <span class="Keyword">===</span> <span class="BuiltInConstant">true</span>) {
first draft of docs are done
2009-12-24 02:01:39 -05:00
launch();
}
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> (band <span class="Keyword">!</span><span class="Keyword">==</span> SpinalTap) {
first draft of docs are done
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volume <span class="Keyword">=</span> <span class="Number">10</span>;
}
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
<span class="Keyword">if</span> (answer <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">false</span>) {
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
letTheWildRumpusBegin();
first draft of docs are done
2009-12-24 02:01:39 -05:00
}
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
<span class="Keyword">if</span> (car.speed <span class="Keyword">&lt;</span> limit) {
accelerate();
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
}
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
<span class="Keyword">if</span> (pick <span class="Keyword">===</span> <span class="Number">47</span> <span class="Keyword">||</span> pick <span class="Keyword">===</span> <span class="Number">92</span> <span class="Keyword">||</span> pick <span class="Keyword">===</span> <span class="Number">13</span>) {
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
winner <span class="Keyword">=</span> <span class="BuiltInConstant">true</span>;
}
CoffeeScript 0.9.0
2010-08-04 23:14:34 -04:00
<span class="LibraryFunction">print</span>(inspect(<span class="String"><span class="String">&quot;</span>My name is <span class="String">&quot;</span></span> <span class="Keyword">+</span> <span class="Variable">this</span>.<span class="LibraryConstant">name</span>));
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example8 = "launch() if ignition is on\n\nvolume = 10 if band isnt SpinalTap\n\nletTheWildRumpusBegin() unless answer is no\n\nif car.speed < limit then accelerate()\n\nwinner = yes if pick in [47, 92, 13]\n\nprint inspect \"My name is \" + @name\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example8);'>Load</div><br class='clear' /></div>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="splats" class="bookmark"></span>
ellipsis is the new splat
2010-01-05 21:40:36 -05:00
<b class="header">Splats...</b>
more docs for 0.2 -- blocks and splats
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The JavaScript <b>arguments object</b> is a useful way to work with
functions that accept variable numbers of arguments. CoffeeScript provides
ellipsis is the new splat
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splats <tt>...</tt>, both for function definition as well as invocation,
doc updates -- widened the code segments for the sake of the JavaScript
2010-01-17 18:33:31 -05:00
making variable numbers of arguments a little bit more palatable.
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">gold <span class="Keyword">=</span> silver <span class="Keyword">=</span> rest <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>unknown<span class="String">&quot;</span></span>
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
preparing documentation for 0.9.5
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<span class="FunctionName">awardMedals </span><span class="Keyword">=</span> <span class="FunctionArgument">(first, second, others...)</span> <span class="Storage">-&gt;</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
gold <span class="Keyword">=</span> first
silver <span class="Keyword">=</span> second
rest <span class="Keyword">=</span> others
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
contenders <span class="Keyword">=</span> [
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
<span class="String"><span class="String">&quot;</span>Michael Phelps<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Liu Xiang<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Yao Ming<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Allyson Felix<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Shawn Johnson<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Roman Sebrle<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Guo Jingjing<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Tyson Gay<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Asafa Powell<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Usain Bolt<span class="String">&quot;</span></span>
]
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
awardMedals contenders...
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
changed the docs for optional parens
2010-01-25 00:14:00 -05:00
alert <span class="String"><span class="String">&quot;</span>Gold: <span class="String">&quot;</span></span> <span class="Keyword">+</span> gold
alert <span class="String"><span class="String">&quot;</span>Silver: <span class="String">&quot;</span></span> <span class="Keyword">+</span> silver
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
alert <span class="String"><span class="String">&quot;</span>The Field: <span class="String">&quot;</span></span> <span class="Keyword">+</span> rest
Bumping site.
2010-12-12 21:41:04 -05:00
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
</pre><pre class="idle"><span class="Storage">var</span> awardMedals, contenders, gold, rest, silver;
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
<span class="Storage">var</span> __slice <span class="Keyword">=</span> <span class="LibraryClassType">Array</span>.<span class="LibraryConstant">prototype</span>.slice;
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
gold <span class="Keyword">=</span> silver <span class="Keyword">=</span> rest <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>unknown<span class="String">&quot;</span></span>;
preparing documentation for 0.9.5
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<span class="FunctionName">awardMedals</span> = <span class="Storage">function</span>() {
<span class="Storage">var</span> first, others, second;
first <span class="Keyword">=</span> arguments[<span class="Number">0</span>], second <span class="Keyword">=</span> arguments[<span class="Number">1</span>], others <span class="Keyword">=</span> <span class="Number">3</span> <span class="Keyword">&lt;=</span> arguments.<span class="LibraryConstant">length</span> ? __slice.<span class="LibraryFunction">call</span>(arguments, <span class="Number">2</span>) : [];
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
gold <span class="Keyword">=</span> first;
silver <span class="Keyword">=</span> second;
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
<span class="Keyword">return</span> rest <span class="Keyword">=</span> others;
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
};
contenders <span class="Keyword">=</span> [<span class="String"><span class="String">&quot;</span>Michael Phelps<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Liu Xiang<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Yao Ming<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Allyson Felix<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Shawn Johnson<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Roman Sebrle<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Guo Jingjing<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Tyson Gay<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Asafa Powell<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Usain Bolt<span class="String">&quot;</span></span>];
Adding precedence change note to changelog
2010-12-01 14:17:10 -05:00
awardMedals.<span class="LibraryFunction">apply</span>(<span class="BuiltInConstant">null</span>, contenders);
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>Gold: <span class="String">&quot;</span></span> <span class="Keyword">+</span> gold);
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>Silver: <span class="String">&quot;</span></span> <span class="Keyword">+</span> silver);
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>The Field: <span class="String">&quot;</span></span> <span class="Keyword">+</span> rest);
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example9 = "gold = silver = rest = \"unknown\"\n\nawardMedals = (first, second, others...) ->\n gold = first\n silver = second\n rest = others\n\ncontenders = [\n \"Michael Phelps\"\n \"Liu Xiang\"\n \"Yao Ming\"\n \"Allyson Felix\"\n \"Shawn Johnson\"\n \"Roman Sebrle\"\n \"Guo Jingjing\"\n \"Tyson Gay\"\n \"Asafa Powell\"\n \"Usain Bolt\"\n]\n\nawardMedals contenders...\n\nalert \"Gold: \" + gold\nalert \"Silver: \" + silver\nalert \"The Field: \" + rest\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example9);'>Load</div><div class='minibutton ok' onclick='javascript: var awardMedals, contenders, gold, rest, silver;
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
var __slice = Array.prototype.slice;
First draft of recompiling examples for 0.9.9
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gold = silver = rest = "unknown";
preparing documentation for 0.9.5
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awardMedals = function() {
var first, others, second;
first = arguments[0], second = arguments[1], others = 3 <= arguments.length ? __slice.call(arguments, 2) : [];
more docs for 0.2 -- blocks and splats
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gold = first;
silver = second;
First draft of recompiling examples for 0.9.9
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return rest = others;
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
};
contenders = ["Michael Phelps", "Liu Xiang", "Yao Ming", "Allyson Felix", "Shawn Johnson", "Roman Sebrle", "Guo Jingjing", "Tyson Gay", "Asafa Powell", "Usain Bolt"];
Adding precedence change note to changelog
2010-12-01 14:17:10 -05:00
awardMedals.apply(null, contenders);
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
alert("Gold: " + gold);
alert("Silver: " + silver);
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
alert("The Field: " + rest);;'>run</div><br class='clear' /></div>
more docs for 0.2 -- blocks and splats
2010-01-04 23:26:27 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="while" class="bookmark"></span>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<b class="header">While, Until, and Loop</b>
CoffeeScript 0.2.5 is on the books
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The only low-level loop that CoffeeScript provides is the <b>while</b> loop. The
main difference from JavaScript is that the <b>while</b> loop can be used
as an expression, returning an array containing the result of each iteration
through the loop.
broken waypoint, but fixed line numbers with the new JS comments
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</p>
doc updates -- widened the code segments for the sake of the JavaScript
2010-01-17 18:33:31 -05:00
<div class='code'><pre class="idle"><span class="Comment"><span class="Comment">#</span> Econ 101</span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> <span class="Variable">this</span>.studyingEconomics
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
buy() <span class="Keyword">while</span> supply <span class="Keyword">&gt;</span> demand
sell() <span class="Keyword">until</span> supply <span class="Keyword">&gt;</span> demand
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
doc updates -- widened the code segments for the sake of the JavaScript
2010-01-17 18:33:31 -05:00
<span class="Comment"><span class="Comment">#</span> Nursery Rhyme</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
num <span class="Keyword">=</span> <span class="Number">6</span>
lyrics <span class="Keyword">=</span> <span class="Keyword">while</span> num <span class="Keyword">-</span><span class="Keyword">=</span> <span class="Number">1</span>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
num <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> little monkeys, jumping on the bed.</span>
<span class="String"> One fell out and bumped his head.<span class="String">&quot;</span></span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
</pre><pre class="idle"><span class="Storage">var</span> lyrics, num, _results;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> (<span class="Variable">this</span>.studyingEconomics) {
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<span class="Keyword">while</span> (supply <span class="Keyword">&gt;</span> demand) {
buy();
}
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
<span class="Keyword">while</span> (<span class="Keyword">!</span>(supply <span class="Keyword">&gt;</span> demand)) {
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
sell();
}
documentation waypoint
2009-12-21 11:41:45 -05:00
}
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
num <span class="Keyword">=</span> <span class="Number">6</span>;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<span class="FunctionName">lyrics</span> = <span class="Storage">function</span>() {
preparing documentation for 0.9.5
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_results <span class="Keyword">=</span> [];
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<span class="Keyword">while</span> (num <span class="Keyword">-</span><span class="Keyword">=</span> <span class="Number">1</span>) {
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
_results.<span class="LibraryFunction">push</span>(num <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> little monkeys, jumping on the bed. One fell out and bumped his head.<span class="String">&quot;</span></span>);
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="Keyword">return</span> _results;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
}();
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example10 = "# Econ 101\nif this.studyingEconomics\n buy() while supply > demand\n sell() until supply > demand\n\n# Nursery Rhyme\nnum = 6\nlyrics = while num -= 1\n num + \" little monkeys, jumping on the bed.\n One fell out and bumped his head.\"\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example10);'>Load</div><div class='minibutton ok' onclick='javascript: var lyrics, num, _results;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
if (this.studyingEconomics) {
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
while (supply > demand) {
buy();
}
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
while (!(supply > demand)) {
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
sell();
}
documentation waypoint
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}
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
num = 6;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
lyrics = function() {
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
_results = [];
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
while (num -= 1) {
preparing documentation for 0.9.5
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_results.push(num + " little monkeys, jumping on the bed. One fell out and bumped his head.");
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
return _results;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
}();;alert(lyrics.join("\n"));'>run: lyrics.join("\n")</div><br class='clear' /></div>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<p>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
For readability, the <b>until</b> keyword is equivalent to <tt>while not</tt>,
and the <b>loop</b> keyword is equivalent to <tt>while true</tt>.
added yes, no, on and off as boolean aliases and a nice aliases section to the docs
2009-12-23 20:24:55 -05:00
Other JavaScript loops, such as <b>for</b> loops and <b>do-while</b> loops
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
can be mimicked by variations on <b>loop</b>, but the hope is that you
added yes, no, on and off as boolean aliases and a nice aliases section to the docs
2009-12-23 20:24:55 -05:00
won't need to do that with CoffeeScript, either because you're using
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<b>each</b> (<b>forEach</b>) style iterators, or...
</p>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="comprehensions" class="bookmark"></span>
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
<b class="header">Comprehensions (Arrays, Objects, and Ranges)</b>
added yes, no, on and off as boolean aliases and a nice aliases section to the docs
2009-12-23 20:24:55 -05:00
For your looping needs, CoffeeScript provides array comprehensions
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
similar to Python's. They replace (and compile into) <b>for</b> loops, with
optional guard clauses and the value of the current array index.
Unlike for loops, array comprehensions are expressions, and can be returned
and assigned. They should be able to handle most places where you otherwise
would use a loop, <b>each</b>/<b>forEach</b>, <b>map</b>, or <b>select</b>/<b>filter</b>.
</p>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<div class='code'><pre class="idle"><span class="Comment"><span class="Comment">#</span> Eat lunch.</span>
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
eat food <span class="Keyword">for</span> food <span class="Keyword">in</span> [<span class="String"><span class="String">'</span>toast<span class="String">'</span></span>, <span class="String"><span class="String">'</span>cheese<span class="String">'</span></span>, <span class="String"><span class="String">'</span>wine<span class="String">'</span></span>]
</pre><pre class="idle"><span class="Storage">var</span> food, _i, _len, _ref;
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
_ref <span class="Keyword">=</span> [<span class="String"><span class="String">'</span>toast<span class="String">'</span></span>, <span class="String"><span class="String">'</span>cheese<span class="String">'</span></span>, <span class="String"><span class="String">'</span>wine<span class="String">'</span></span>];
<span class="Keyword">for</span> (_i <span class="Keyword">=</span> <span class="Number">0</span>, _len <span class="Keyword">=</span> _ref.<span class="LibraryConstant">length</span>; _i <span class="Keyword">&lt;</span> _len; _i<span class="Keyword">++</span>) {
food <span class="Keyword">=</span> _ref[_i];
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
eat(food);
documentation waypoint
2009-12-21 11:41:45 -05:00
}
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example11 = "# Eat lunch.\neat food for food in ['toast', 'cheese', 'wine']\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example11);'>Load</div><br class='clear' /></div>
docs for range comprehensiosn
2009-12-26 23:46:31 -05:00
<p>
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
If you know the start and end of your loop, or would like to step through
in fixed-size increments, you can use a range to specify the start and
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
end of your comprehension.
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
2010-01-10 15:52:23 -05:00
</p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<div class='code'><pre class="idle">countdown <span class="Keyword">=</span> (num <span class="Keyword">for</span> num <span class="Keyword">in</span> [<span class="Number">10</span>..<span class="Number">1</span>])
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
2010-01-10 15:52:23 -05:00
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
</pre><pre class="idle"><span class="Storage">var</span> countdown, num, _results;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
countdown <span class="Keyword">=</span> (<span class="Storage">function</span>() {
preparing documentation for 0.9.5
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_results <span class="Keyword">=</span> [];
<span class="Keyword">for</span> (num <span class="Keyword">=</span> <span class="Number">10</span>; num <span class="Keyword">&gt;=</span> <span class="Number">1</span>; num<span class="Keyword">--</span>) {
_results.<span class="LibraryFunction">push</span>(num);
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
2010-01-10 15:52:23 -05:00
}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="Keyword">return</span> _results;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
}());
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example12 = "countdown = (num for num in [10..1])\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example12);'>Load</div><div class='minibutton ok' onclick='javascript: var countdown, num, _results;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
countdown = (function() {
preparing documentation for 0.9.5
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_results = [];
for (num = 10; num >= 1; num--) {
_results.push(num);
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
2010-01-10 15:52:23 -05:00
}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
return _results;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
}());;alert(countdown);'>run: countdown</div><br class='clear' /></div>
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
Note how because we are assigning the value of the comprehensions to a
variable in the example above, CoffeeScript is collecting the result of
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
each iteration into an array. Sometimes functions end with loops that are
intended to run only for their side-effects. Be careful that you're not
accidentally returning the results of the comprehension in these cases,
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
by adding a meaningful return value, like <tt>true</tt>, or <tt>null</tt>,
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
to the bottom of your function.
</p>
first pass at 0.2.0 docs
2010-01-04 22:19:45 -05:00
<p>
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
2010-01-10 15:52:23 -05:00
Comprehensions can also be used to iterate over the keys and values in
documentation for pattern matching
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an object. Use <tt>of</tt> to signal comprehension over the properties of
CoffeeScript 0.2.3, with 'of', not 'ino'
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an object instead of the values in an array.
docs for range comprehensiosn
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</p>
CoffeeScript 0.9.4
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<div class='code'><pre class="idle">yearsOld <span class="Keyword">=</span> max: <span class="Number">10</span>, ida: <span class="Number">9</span>, tim: <span class="Number">11</span>
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
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ported and regenerated examples.
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ages <span class="Keyword">=</span> <span class="Keyword">for</span> child, age <span class="Keyword">of</span> yearsOld
added a whole slew of nice Potion examples from the pamphlet -- CoffeeScript stacks up pretty well.
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child <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> is <span class="String">&quot;</span></span> <span class="Keyword">+</span> age
preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Storage">var</span> age, ages, child, yearsOld, _results;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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yearsOld <span class="Keyword">=</span> {
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
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max: <span class="Number">10</span>,
ida: <span class="Number">9</span>,
tim: <span class="Number">11</span>
};
Switching default arguments to use an if instead of an and, more documentation.
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<span class="FunctionName">ages</span> = <span class="Storage">function</span>() {
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_results <span class="Keyword">=</span> [];
First draft of named classes.
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<span class="Keyword">for</span> (child <span class="Keyword">in</span> yearsOld) {
age <span class="Keyword">=</span> yearsOld[child];
preparing documentation for 0.9.5
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_results.<span class="LibraryFunction">push</span>(child <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> is <span class="String">&quot;</span></span> <span class="Keyword">+</span> age);
Updating documentation with endtime's suggestions.
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}
preparing documentation for 0.9.5
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<span class="Keyword">return</span> _results;
Switching default arguments to use an if instead of an and, more documentation.
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}();
Bumping site.
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</pre><script>window.example13 = "yearsOld = max: 10, ida: 9, tim: 11\n\nages = for child, age of yearsOld\n child + \" is \" + age"</script><div class='minibutton load' onclick='javascript: loadConsole(example13);'>Load</div><div class='minibutton ok' onclick='javascript: var age, ages, child, yearsOld, _results;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
yearsOld = {
big commit -- adding back object comprehensions, using 'ino', versus 'in' for array comprehensions, fixing bug with dollar signs in identifiers
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max: 10,
ida: 9,
tim: 11
};
Switching default arguments to use an if instead of an and, more documentation.
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ages = function() {
preparing documentation for 0.9.5
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_results = [];
First draft of named classes.
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for (child in yearsOld) {
age = yearsOld[child];
preparing documentation for 0.9.5
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_results.push(child + " is " + age);
Updating documentation with endtime's suggestions.
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}
preparing documentation for 0.9.5
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return _results;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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}();;alert(ages.join(", "));'>run: ages.join(", ")</div><br class='clear' /></div>
CoffeeScript 0.9.0
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<p>
By default, object comprehensions are safe, and use a <tt>hasOwnProperty</tt>
check to make sure that you're dealing with properties on the current
object. If you'd like the regular JavaScript <br /><tt>for (key in obj) ...</tt>
loop, for speed or for another reason, you can use <br />
<tt>for all key, value of object</tt> in CoffeeScript.
</p>
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
<p>
<span id="slices" class="bookmark"></span>
<b class="header">Array Slicing and Splicing with Ranges</b>
Ranges can also be used to extract slices of arrays.
With two dots (<tt>3..6</tt>), the range is inclusive (<tt>3, 4, 5, 6</tt>);
with three docs (<tt>3...6</tt>), the range excludes the end (<tt>3, 4, 5</tt>).
</p>
<div class='code'><pre class="idle">numbers <span class="Keyword">=</span> [<span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>, <span class="Number">6</span>, <span class="Number">7</span>, <span class="Number">8</span>, <span class="Number">9</span>]
copy <span class="Keyword">=</span> numbers[<span class="Number">0</span>...numbers.length]
middle <span class="Keyword">=</span> copy[<span class="Number">3</span>..<span class="Number">6</span>]
Bumping site.
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redocumenting slices/splices ... issue #833
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</pre><pre class="idle"><span class="Storage">var</span> copy, middle, numbers;
numbers <span class="Keyword">=</span> [<span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>, <span class="Number">6</span>, <span class="Number">7</span>, <span class="Number">8</span>, <span class="Number">9</span>];
copy <span class="Keyword">=</span> numbers.<span class="LibraryFunction">slice</span>(<span class="Number">0</span>, numbers.<span class="LibraryConstant">length</span>);
middle <span class="Keyword">=</span> copy.<span class="LibraryFunction">slice</span>(<span class="Number">3</span>, <span class="Number">6</span> <span class="Keyword">+</span> <span class="Number">1</span>);
Bumping site.
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</pre><script>window.example14 = "numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]\n\ncopy = numbers[0...numbers.length]\n\nmiddle = copy[3..6]\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example14);'>Load</div><div class='minibutton ok' onclick='javascript: var copy, middle, numbers;
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numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
copy = numbers.slice(0, numbers.length);
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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middle = copy.slice(3, 6 + 1);;alert(middle);'>run: middle</div><br class='clear' /></div>
redocumenting slices/splices ... issue #833
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<p>
The same syntax can be used with assignment to replace a segment of an array
with new values, splicing it.
</p>
<div class='code'><pre class="idle">numbers <span class="Keyword">=</span> [<span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>, <span class="Number">6</span>, <span class="Number">7</span>, <span class="Number">8</span>, <span class="Number">9</span>]
numbers[<span class="Number">3</span>..<span class="Number">6</span>] <span class="Keyword">=</span> [<span class="Keyword">-</span><span class="Number">3</span>, <span class="Keyword">-</span><span class="Number">4</span>, <span class="Keyword">-</span><span class="Number">5</span>, <span class="Keyword">-</span><span class="Number">6</span>]
Adding warning about accidentally-comprehended-functions. Issue #896.
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</pre><pre class="idle"><span class="Storage">var</span> numbers;
redocumenting slices/splices ... issue #833
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numbers <span class="Keyword">=</span> [<span class="Number">0</span>, <span class="Number">1</span>, <span class="Number">2</span>, <span class="Number">3</span>, <span class="Number">4</span>, <span class="Number">5</span>, <span class="Number">6</span>, <span class="Number">7</span>, <span class="Number">8</span>, <span class="Number">9</span>];
Adding warning about accidentally-comprehended-functions. Issue #896.
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[].splice.<span class="LibraryFunction">apply</span>(numbers, [<span class="Number">3</span>, <span class="Number">4</span>].<span class="LibraryFunction">concat</span>([<span class="Keyword">-</span><span class="Number">3</span>, <span class="Keyword">-</span><span class="Number">4</span>, <span class="Keyword">-</span><span class="Number">5</span>, <span class="Keyword">-</span><span class="Number">6</span>]));
Bumping site.
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</pre><script>window.example15 = "numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]\n\nnumbers[3..6] = [-3, -4, -5, -6]\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example15);'>Load</div><div class='minibutton ok' onclick='javascript: var numbers;
redocumenting slices/splices ... issue #833
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numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
[].splice.apply(numbers, [3, 4].concat([-3, -4, -5, -6]));;alert(numbers);'>run: numbers</div><br class='clear' /></div>
redocumenting slices/splices ... issue #833
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<p>
Note that JavaScript strings are immutable, and can't be spliced.
</p>
first working draft of the new documentation
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<p>
<span id="expressions" class="bookmark"></span>
adding the complete underscore.coffee example to the docs
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<b class="header">Everything is an Expression (at least, as much as possible)</b>
You might have noticed how even though we don't add return statements
to CoffeeScript functions, they nonetheless return their final value.
The CoffeeScript compiler tries to make sure that all statements in the
language can be used as expressions. Watch how the <tt>return</tt> gets
pushed down into each possible branch of execution, in the function
below.
</p>
preparing documentation for 0.9.5
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<div class='code'><pre class="idle"><span class="FunctionName">grade </span><span class="Keyword">=</span> <span class="FunctionArgument">(student)</span> <span class="Storage">-&gt;</span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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<span class="Keyword">if</span> student.excellentWork
adding the complete underscore.coffee example to the docs
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<span class="String"><span class="String">&quot;</span>A+<span class="String">&quot;</span></span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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<span class="Keyword">else</span> <span class="Keyword">if</span> student.okayStuff
<span class="Keyword">if</span> student.triedHard <span class="Keyword">then</span> <span class="String"><span class="String">&quot;</span>B<span class="String">&quot;</span></span> <span class="Keyword">else</span> <span class="String"><span class="String">&quot;</span>B-<span class="String">&quot;</span></span>
adding the complete underscore.coffee example to the docs
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<span class="Keyword">else</span>
<span class="String"><span class="String">&quot;</span>C<span class="String">&quot;</span></span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
eldest <span class="Keyword">=</span> <span class="Keyword">if</span> <span class="Number">24</span> <span class="Keyword">&gt;</span> <span class="Number">21</span> <span class="Keyword">then</span> <span class="String"><span class="String">&quot;</span>Liz<span class="String">&quot;</span></span> <span class="Keyword">else</span> <span class="String"><span class="String">&quot;</span>Ike<span class="String">&quot;</span></span>
adding the complete underscore.coffee example to the docs
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</pre><pre class="idle"><span class="Storage">var</span> eldest, grade;
CoffeeScript 0.6.2
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<span class="FunctionName">grade</span> = <span class="Storage">function</span>(<span class="FunctionArgument">student</span>) {
preparing documentation for 0.9.5
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<span class="Keyword">if</span> (student.excellentWork) {
<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>A+<span class="String">&quot;</span></span>;
} <span class="Keyword">else</span> <span class="Keyword">if</span> (student.okayStuff) {
<span class="Keyword">if</span> (student.triedHard) {
<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>B<span class="String">&quot;</span></span>;
} <span class="Keyword">else</span> {
<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>B-<span class="String">&quot;</span></span>;
}
} <span class="Keyword">else</span> {
<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>C<span class="String">&quot;</span></span>;
}
adding the complete underscore.coffee example to the docs
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};
eldest <span class="Keyword">=</span> <span class="Number">24</span> <span class="Keyword">&gt;</span> <span class="Number">21</span> ? <span class="String"><span class="String">&quot;</span>Liz<span class="String">&quot;</span></span> : <span class="String"><span class="String">&quot;</span>Ike<span class="String">&quot;</span></span>;
Bumping site.
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</pre><script>window.example16 = "grade = (student) ->\n if student.excellentWork\n \"A+\"\n else if student.okayStuff\n if student.triedHard then \"B\" else \"B-\"\n else\n \"C\"\n\neldest = if 24 > 21 then \"Liz\" else \"Ike\""</script><div class='minibutton load' onclick='javascript: loadConsole(example16);'>Load</div><div class='minibutton ok' onclick='javascript: var eldest, grade;
CoffeeScript 0.6.2
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grade = function(student) {
preparing documentation for 0.9.5
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if (student.excellentWork) {
return "A+";
} else if (student.okayStuff) {
if (student.triedHard) {
return "B";
} else {
return "B-";
}
} else {
return "C";
}
adding the complete underscore.coffee example to the docs
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};
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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eldest = 24 > 21 ? "Liz" : "Ike";;alert(eldest);'>run: eldest</div><br class='clear' /></div>
more docs for 0.2.2
2010-01-10 17:14:20 -05:00
<p>
Even though functions will always return their final value, it's both possible
and encouraged to return early from a function body writing out the explicit
return (<tt>return value</tt>), when you know that you're done.
</p>
adding the complete underscore.coffee example to the docs
2010-01-04 22:51:02 -05:00
<p>
Because variable declarations occur at the top of scope, assignment can
be used within expressions, even for variables that haven't been seen before:
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">six <span class="Keyword">=</span> (one <span class="Keyword">=</span> <span class="Number">1</span>) <span class="Keyword">+</span> (two <span class="Keyword">=</span> <span class="Number">2</span>) <span class="Keyword">+</span> (three <span class="Keyword">=</span> <span class="Number">3</span>)
Bumping site.
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adding the complete underscore.coffee example to the docs
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</pre><pre class="idle"><span class="Storage">var</span> one, six, three, two;
CoffeeScript 0.5.6
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six <span class="Keyword">=</span> (one <span class="Keyword">=</span> <span class="Number">1</span>) <span class="Keyword">+</span> (two <span class="Keyword">=</span> <span class="Number">2</span>) <span class="Keyword">+</span> (three <span class="Keyword">=</span> <span class="Number">3</span>);
Bumping site.
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</pre><script>window.example17 = "six = (one = 1) + (two = 2) + (three = 3)\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example17);'>Load</div><div class='minibutton ok' onclick='javascript: var one, six, three, two;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
six = (one = 1) + (two = 2) + (three = 3);;alert(six);'>run: six</div><br class='clear' /></div>
adding the complete underscore.coffee example to the docs
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<p>
Things that would otherwise be statements in JavaScript, when used
as part of an expression in CoffeeScript, are converted into expressions
by wrapping them in a closure. This lets you do useful things, like assign
the result of a comprehension to a variable:
</p>
<div class='code'><pre class="idle"><span class="Comment"><span class="Comment">#</span> The first ten global properties.</span>
ported and regenerated examples.
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globals <span class="Keyword">=</span> (name <span class="Keyword">for</span> name <span class="Keyword">of</span> window)[<span class="Number">0</span>...<span class="Number">10</span>]
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
</pre><pre class="idle"><span class="Storage">var</span> globals, name, _results;
Switching default arguments to use an if instead of an and, more documentation.
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globals <span class="Keyword">=</span> (<span class="Storage">function</span>() {
preparing documentation for 0.9.5
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_results <span class="Keyword">=</span> [];
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
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<span class="Keyword">for</span> (name <span class="Keyword">in</span> <span class="LibraryClassType">window</span>) {
preparing documentation for 0.9.5
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_results.<span class="LibraryFunction">push</span>(name);
Updating documentation with endtime's suggestions.
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}
preparing documentation for 0.9.5
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<span class="Keyword">return</span> _results;
Switching default arguments to use an if instead of an and, more documentation.
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}()).<span class="LibraryFunction">slice</span>(<span class="Number">0</span>, <span class="Number">10</span>);
Bumping site.
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</pre><script>window.example18 = "# The first ten global properties.\n\nglobals = (name for name of window)[0...10]"</script><div class='minibutton load' onclick='javascript: loadConsole(example18);'>Load</div><div class='minibutton ok' onclick='javascript: var globals, name, _results;
Switching default arguments to use an if instead of an and, more documentation.
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globals = (function() {
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_results = [];
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
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for (name in window) {
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_results.push(name);
Updating documentation with endtime's suggestions.
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}
preparing documentation for 0.9.5
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return _results;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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}()).slice(0, 10);;alert(globals);'>run: globals</div><br class='clear' /></div>
adding the complete underscore.coffee example to the docs
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<p>
As well as silly things, like passing a <b>try/catch</b> statement directly
into a function call:
</p>
<div class='code'><pre class="idle">alert(
<span class="Keyword">try</span>
nonexistent <span class="Keyword">/</span> <span class="BuiltInConstant">undefined</span>
<span class="Keyword">catch</span> error
doc updates -- widened the code segments for the sake of the JavaScript
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<span class="String"><span class="String">&quot;</span>And the error is ... <span class="String">&quot;</span></span> <span class="Keyword">+</span> error
adding the complete underscore.coffee example to the docs
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)
Bumping site.
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Switching default arguments to use an if instead of an and, more documentation.
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</pre><pre class="idle"><span class="LibraryFunction">alert</span>(<span class="Storage">function</span>() {
adding the complete underscore.coffee example to the docs
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<span class="Keyword">try</span> {
preparing documentation for 0.9.5
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<span class="Keyword">return</span> nonexistent / <span class="Storage">void</span> <span class="Number">0</span>;
adding the complete underscore.coffee example to the docs
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} <span class="Keyword">catch</span> (error) {
doc updates -- widened the code segments for the sake of the JavaScript
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<span class="Keyword">return</span> <span class="String"><span class="String">&quot;</span>And the error is ... <span class="String">&quot;</span></span> <span class="Keyword">+</span> error;
adding the complete underscore.coffee example to the docs
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}
Switching default arguments to use an if instead of an and, more documentation.
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}());
Bumping site.
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</pre><script>window.example19 = "alert(\n try\n nonexistent / undefined\n catch error\n \"And the error is ... \" + error\n)\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example19);'>Load</div><div class='minibutton ok' onclick='javascript: alert(function() {
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try {
preparing documentation for 0.9.5
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return nonexistent / void 0;
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} catch (error) {
doc updates -- widened the code segments for the sake of the JavaScript
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return "And the error is ... " + error;
adding the complete underscore.coffee example to the docs
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}
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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}());;'>run</div><br class='clear' /></div>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
<p>
There are a handful of statements in JavaScript that can't be meaningfully
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
converted into expressions, namely <tt>break</tt>, <tt>continue</tt>,
and <tt>return</tt>. If you make use of them within a block of code,
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
CoffeeScript won't try to perform the conversion.
</p>
got coffeescript compiling in the browser
2010-02-13 15:25:04 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="existence" class="bookmark"></span>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<b class="header">The Existential Operator</b>
It's a little difficult to check for the existence of a variable in
JavaScript. <tt>if (variable) ...</tt> comes close, but fails for zero,
the empty string, and false. CoffeeScript's existential operator <tt>?</tt> returns true unless
a variable is <b>null</b> or <b>undefined</b>, which makes it analogous
to Ruby's <tt>nil?</tt>
</p>
<p>
It can also be used for safer conditional assignment than <tt>||=</tt>
provides, for cases where you may be handling numbers or strings.
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">solipsism <span class="Keyword">=</span> <span class="BuiltInConstant">true</span> <span class="Keyword">if</span> mind<span class="Keyword">?</span> <span class="Keyword">and</span> <span class="Keyword">not</span> world<span class="Keyword">?</span>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
speed <span class="Keyword">?</span><span class="Keyword">=</span> <span class="Number">75</span>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
footprints <span class="Keyword">=</span> yeti <span class="Keyword">?</span> <span class="String"><span class="String">&quot;</span>bear<span class="String">&quot;</span></span>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
</pre><pre class="idle"><span class="Storage">var</span> footprints, solipsism;
preparing documentation for 0.9.5
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<span class="Keyword">if</span> ((<span class="Keyword">typeof</span> mind <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>undefined<span class="String">&quot;</span></span> <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> mind <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">null</span>) <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> <span class="Keyword">!</span>(<span class="Keyword">typeof</span> world <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>undefined<span class="String">&quot;</span></span> <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> world <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">null</span>)) {
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
solipsism <span class="Keyword">=</span> <span class="BuiltInConstant">true</span>;
}
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<span class="Keyword">typeof</span> speed <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>undefined<span class="String">&quot;</span></span> <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> speed <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">null</span> ? speed : speed <span class="Keyword">=</span> <span class="Number">75</span>;
footprints <span class="Keyword">=</span> <span class="Keyword">typeof</span> yeti <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>undefined<span class="String">&quot;</span></span> <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> yeti <span class="Keyword">!</span><span class="Keyword">==</span> <span class="BuiltInConstant">null</span> ? yeti : <span class="String"><span class="String">&quot;</span>bear<span class="String">&quot;</span></span>;
Bumping site.
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</pre><script>window.example20 = "solipsism = true if mind? and not world?\n\nspeed ?= 75\n\nfootprints = yeti ? \"bear\"\n\n\n\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example20);'>Load</div><div class='minibutton ok' onclick='javascript: var footprints, solipsism;
preparing documentation for 0.9.5
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if ((typeof mind != "undefined" && mind !== null) && !(typeof world != "undefined" && world !== null)) {
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
solipsism = true;
}
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
typeof speed != "undefined" && speed !== null ? speed : speed = 75;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
footprints = typeof yeti != "undefined" && yeti !== null ? yeti : "bear";;alert(footprints);'>run: footprints</div><br class='clear' /></div>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<p>
The accessor variant of the existential operator <tt>?.</tt> can be used to soak
up null references in a chain of properties. Use it instead
of the dot accessor <tt>.</tt> in cases where the base value may be <b>null</b>
or <b>undefined</b>. If all of the properties exist then you'll get the expected
result, if the chain is broken, <b>undefined</b> is returned instead of
the <b>TypeError</b> that would be raised otherwise.
</p>
preparing documentation for 0.9.5
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<div class='code'><pre class="idle">zip <span class="Keyword">=</span> lottery.drawWinner<span class="Keyword">?</span>().address<span class="Keyword">?</span>.zipcode
</pre><pre class="idle"><span class="Storage">var</span> zip, _ref;
zip <span class="Keyword">=</span> <span class="Keyword">typeof</span> lottery.drawWinner <span class="Keyword">===</span> <span class="String"><span class="String">&quot;</span>function<span class="String">&quot;</span></span> ? (_ref <span class="Keyword">=</span> lottery.drawWinner().address) <span class="Keyword">!</span><span class="Keyword">=</span> <span class="BuiltInConstant">null</span> ? _ref.zipcode : <span class="Storage">void</span> <span class="Number">0</span> : <span class="Storage">void</span> <span class="Number">0</span>;
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example21 = "zip = lottery.drawWinner?().address?.zipcode\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example21);'>Load</div><br class='clear' /></div>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<p>
got coffeescript compiling in the browser
2010-02-13 15:25:04 -05:00
Soaking up nulls is similar to Ruby's
<a href="http://andand.rubyforge.org/">andand gem</a>, and to the
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
<a href="http://groovy.codehaus.org/Operators#Operators-SafeNavigationOperator%28%3F.%29">safe navigation operator</a>
in Groovy.
</p>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
updating documentation for classes
2010-02-27 20:12:47 -05:00
<span id="classes" class="bookmark"></span>
<b class="header">Classes, Inheritance, and Super</b>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
JavaScript's prototypal inheritance has always been a bit of a
brain-bender, with a whole family tree of libraries that provide a cleaner
syntax for classical inheritance on top of JavaScript's prototypes:
added yes, no, on and off as boolean aliases and a nice aliases section to the docs
2009-12-23 20:24:55 -05:00
<a href="http://code.google.com/p/base2/">Base2</a>,
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<a href="http://prototypejs.org/">Prototype.js</a>,
<a href="http://jsclass.jcoglan.com/">JS.Class</a>, etc.
more better super docs, better switch docs
2009-12-23 20:48:55 -05:00
The libraries provide syntactic sugar, but the built-in inheritance would
got extends back in the language -- use it together with super
2009-12-24 19:49:23 -05:00
be completely usable if it weren't for a couple of small exceptions:
it's awkward to call <b>super</b> (the prototype object's
implementation of the current function), and it's awkward to correctly
documentation for pattern matching
2010-01-11 22:55:01 -05:00
set the prototype chain.
more docs for 0.2.2
2010-01-10 17:14:20 -05:00
</p>
<p>
updating documentation for classes
2010-02-27 20:12:47 -05:00
Instead of repetitively attaching functions to a prototype, CoffeeScript
provides a basic <tt>class</tt> structure that allows you to name your class,
set the superclass, assign prototypal properties, and define the constructor,
in a single assignable expression.
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<p>
Constructor functions are named, to better support reflection. In the
example below for the first class, <tt>this.constructor.name is "Animal"</tt>.
</p>
CoffeeScript 0.9.2
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<div class='code'><pre class="idle"><span class="Storage">class</span> <span class="TypeName">Animal</span>
preparing documentation for 0.9.5
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<span class="FunctionName">constructor</span><span class="Keyword">:</span> <span class="FunctionArgument">(@name)</span> <span class="Storage">-&gt;</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">move</span><span class="Keyword">:</span> <span class="FunctionArgument">(meters)</span> <span class="Storage">-&gt;</span>
updating documentation for classes
2010-02-27 20:12:47 -05:00
alert <span class="Variable">@name</span> <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> moved <span class="String">&quot;</span></span> <span class="Keyword">+</span> meters <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span>m.<span class="String">&quot;</span></span>
got coffeescript compiling in the browser
2010-02-13 15:25:04 -05:00
CoffeeScript 0.9.2
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<span class="Storage">class</span> <span class="TypeName">Snake</span><span class="InheritedClass"> <span class="Keyword">extends</span> Animal</span>
preparing documentation for 0.9.5
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<span class="FunctionName">move</span><span class="Keyword">:</span> <span class="Keyword">-</span><span class="Keyword">&gt;</span>
updating documentation for classes
2010-02-27 20:12:47 -05:00
alert <span class="String"><span class="String">&quot;</span>Slithering...<span class="String">&quot;</span></span>
<span class="Variable">super</span> <span class="Number">5</span>
got coffeescript compiling in the browser
2010-02-13 15:25:04 -05:00
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
<span class="Storage">class</span> <span class="TypeName">Horse</span><span class="InheritedClass"> <span class="Keyword">extends</span> Animal</span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<span class="FunctionName">move</span><span class="Keyword">:</span> <span class="Keyword">-</span><span class="Keyword">&gt;</span>
updating documentation for classes
2010-02-27 20:12:47 -05:00
alert <span class="String"><span class="String">&quot;</span>Galloping...<span class="String">&quot;</span></span>
<span class="Variable">super</span> <span class="Number">45</span>
documentation waypoint
2009-12-21 11:41:45 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
sam <span class="Keyword">=</span> <span class="Keyword">new</span> <span class="TypeName">Snake</span> <span class="String"><span class="String">&quot;</span>Sammy the Python<span class="String">&quot;</span></span>
tom <span class="Keyword">=</span> <span class="Keyword">new</span> <span class="TypeName">Horse</span> <span class="String"><span class="String">&quot;</span>Tommy the Palomino<span class="String">&quot;</span></span>
documentation waypoint
2009-12-21 11:41:45 -05:00
sam.move()
tom.move()
first draft of docs are done
2009-12-24 02:01:39 -05:00
updating documentation for classes
2010-02-27 20:12:47 -05:00
</pre><pre class="idle"><span class="Storage">var</span> Animal, Horse, Snake, sam, tom;
preparing documentation for 0.9.5
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<span class="Storage">var</span> __hasProp <span class="Keyword">=</span> <span class="LibraryClassType">Object</span>.<span class="LibraryConstant">prototype</span>.hasOwnProperty, <span class="FunctionName">__extends</span> = <span class="Storage">function</span>(<span class="FunctionArgument">child, parent</span>) {
<span class="Keyword">for</span> (<span class="Storage">var</span> key <span class="Keyword">in</span> parent) { <span class="Keyword">if</span> (__hasProp.<span class="LibraryFunction">call</span>(parent, key)) child[key] <span class="Keyword">=</span> parent[key]; }
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="Storage">function</span> <span class="FunctionName">ctor</span>() { <span class="Variable">this</span>.<span class="LibraryConstant">constructor</span> <span class="Keyword">=</span> child; }
optimizing comprehensions source references
2010-10-06 21:13:11 -04:00
<span class="LibraryClassType">ctor</span>.<span class="LibraryConstant">prototype</span> = parent.<span class="LibraryConstant">prototype</span>;
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="LibraryClassType">child</span>.<span class="LibraryConstant">prototype</span> = <span class="Keyword">new</span> <span class="TypeName">ctor</span>;
optimizing comprehensions source references
2010-10-06 21:13:11 -04:00
child.__super__ <span class="Keyword">=</span> parent.<span class="LibraryConstant">prototype</span>;
preparing documentation for 0.9.5
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<span class="Keyword">return</span> child;
optimizing comprehensions source references
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};
preparing documentation for 0.9.5
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<span class="FunctionName">Animal</span> = <span class="Storage">function</span>() {
<span class="Storage">function</span> <span class="FunctionName">Animal</span>(<span class="FunctionArgument">name</span>) {
<span class="Variable">this</span>.<span class="LibraryConstant">name</span> <span class="Keyword">=</span> name;
First draft of recompiling examples for 0.9.9
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}
preparing documentation for 0.9.5
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<span class="LibraryClassType">Animal</span>.<span class="LibraryConstant">prototype</span>.<span class="FunctionName">move</span> = <span class="Storage">function</span>(<span class="FunctionArgument">meters</span>) {
<span class="Keyword">return</span> <span class="LibraryFunction">alert</span>(<span class="Variable">this</span>.<span class="LibraryConstant">name</span> <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> moved <span class="String">&quot;</span></span> <span class="Keyword">+</span> meters <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span>m.<span class="String">&quot;</span></span>);
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="Keyword">return</span> Animal;
preparing documentation for 0.9.5
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}();
<span class="FunctionName">Snake</span> = <span class="Storage">function</span>() {
going back to the Closure Compiler.
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<span class="Storage">function</span> <span class="FunctionName">Snake</span>() {
preparing documentation for 0.9.5
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Snake.__super__.<span class="LibraryConstant">constructor</span>.<span class="LibraryFunction">apply</span>(<span class="Variable">this</span>, arguments);
First draft of recompiling examples for 0.9.9
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}
preparing documentation for 0.9.5
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__extends(Snake, Animal);
<span class="LibraryClassType">Snake</span>.<span class="LibraryConstant">prototype</span>.<span class="FunctionName">move</span> = <span class="Storage">function</span>() {
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>Slithering...<span class="String">&quot;</span></span>);
<span class="Keyword">return</span> Snake.__super__.move.<span class="LibraryFunction">call</span>(<span class="Variable">this</span>, <span class="Number">5</span>);
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="Keyword">return</span> Snake;
preparing documentation for 0.9.5
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}();
<span class="FunctionName">Horse</span> = <span class="Storage">function</span>() {
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="Storage">function</span> <span class="FunctionName">Horse</span>() {
preparing documentation for 0.9.5
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Horse.__super__.<span class="LibraryConstant">constructor</span>.<span class="LibraryFunction">apply</span>(<span class="Variable">this</span>, arguments);
First draft of recompiling examples for 0.9.9
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}
preparing documentation for 0.9.5
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__extends(Horse, Animal);
<span class="LibraryClassType">Horse</span>.<span class="LibraryConstant">prototype</span>.<span class="FunctionName">move</span> = <span class="Storage">function</span>() {
<span class="LibraryFunction">alert</span>(<span class="String"><span class="String">&quot;</span>Galloping...<span class="String">&quot;</span></span>);
<span class="Keyword">return</span> Horse.__super__.move.<span class="LibraryFunction">call</span>(<span class="Variable">this</span>, <span class="Number">45</span>);
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<span class="Keyword">return</span> Horse;
preparing documentation for 0.9.5
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}();
docs for assignment-as-expression
2009-12-26 02:17:34 -05:00
sam <span class="Keyword">=</span> <span class="Keyword">new</span> <span class="TypeName">Snake</span>(<span class="String"><span class="String">&quot;</span>Sammy the Python<span class="String">&quot;</span></span>);
tom <span class="Keyword">=</span> <span class="Keyword">new</span> <span class="TypeName">Horse</span>(<span class="String"><span class="String">&quot;</span>Tommy the Palomino<span class="String">&quot;</span></span>);
documentation waypoint
2009-12-21 11:41:45 -05:00
sam.move();
tom.move();
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example22 = "class Animal\n constructor: (@name) ->\n\n move: (meters) ->\n alert @name + \" moved \" + meters + \"m.\"\n\nclass Snake extends Animal\n move: ->\n alert \"Slithering...\"\n super 5\n\nclass Horse extends Animal\n move: ->\n alert \"Galloping...\"\n super 45\n\nsam = new Snake \"Sammy the Python\"\ntom = new Horse \"Tommy the Palomino\"\n\nsam.move()\ntom.move()\n\n\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example22);'>Load</div><div class='minibutton ok' onclick='javascript: var Animal, Horse, Snake, sam, tom;
preparing documentation for 0.9.5
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var __hasProp = Object.prototype.hasOwnProperty, __extends = function(child, parent) {
for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; }
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
function ctor() { this.constructor = child; }
optimizing comprehensions source references
2010-10-06 21:13:11 -04:00
ctor.prototype = parent.prototype;
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
child.prototype = new ctor;
optimizing comprehensions source references
2010-10-06 21:13:11 -04:00
child.__super__ = parent.prototype;
preparing documentation for 0.9.5
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return child;
optimizing comprehensions source references
2010-10-06 21:13:11 -04:00
};
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
Animal = function() {
function Animal(name) {
this.name = name;
First draft of recompiling examples for 0.9.9
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}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
Animal.prototype.move = function(meters) {
return alert(this.name + " moved " + meters + "m.");
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
return Animal;
preparing documentation for 0.9.5
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}();
Snake = function() {
going back to the Closure Compiler.
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function Snake() {
preparing documentation for 0.9.5
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Snake.__super__.constructor.apply(this, arguments);
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
__extends(Snake, Animal);
Snake.prototype.move = function() {
alert("Slithering...");
return Snake.__super__.move.call(this, 5);
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
return Snake;
preparing documentation for 0.9.5
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}();
Horse = function() {
going back to the Closure Compiler.
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function Horse() {
preparing documentation for 0.9.5
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Horse.__super__.constructor.apply(this, arguments);
First draft of recompiling examples for 0.9.9
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}
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
__extends(Horse, Animal);
Horse.prototype.move = function() {
alert("Galloping...");
return Horse.__super__.move.call(this, 45);
};
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
return Horse;
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
}();
docs for assignment-as-expression
2009-12-26 02:17:34 -05:00
sam = new Snake("Sammy the Python");
tom = new Horse("Tommy the Palomino");
documentation waypoint
2009-12-21 11:41:45 -05:00
sam.move();
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
tom.move();;'>run</div><br class='clear' /></div>
adding the long-ago-needed documentation for constructors with 'return this'
2010-02-26 20:09:49 -05:00
<p>
updating documentation for classes
2010-02-27 20:12:47 -05:00
If structuring your prototypes classically isn't your cup of tea, CoffeeScript
provides a couple of lower-level conveniences. The <tt>extends</tt> operator
scratch 'as seen above'
2010-03-08 06:44:47 -05:00
helps with proper prototype setup, <tt>::</tt> gives you
updating documentation for classes
2010-02-27 20:12:47 -05:00
quick access to an object's prototype, and <tt>super()</tt>
is converted into a call against the immediate ancestor's method of the same name.
adding the long-ago-needed documentation for constructors with 'return this'
2010-02-26 20:09:49 -05:00
</p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<div class='code'><pre class="idle"><span class="FunctionName">String::dasherize </span><span class="Keyword">=</span> <span class="Keyword">-</span><span class="Keyword">&gt;</span>
rebuilding documentation
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<span class="Variable">this</span>.replace <span class="String">/_/g</span>, <span class="String"><span class="String">&quot;</span>-<span class="String">&quot;</span></span>
Bumping site.
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CoffeeScript 0.6.2
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</pre><pre class="idle"><span class="LibraryClassType">String</span>.<span class="LibraryConstant">prototype</span>.<span class="FunctionName">dasherize</span> = <span class="Storage">function</span>() {
updating documentation for classes
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<span class="Keyword">return</span> <span class="Variable">this</span>.<span class="LibraryFunction">replace</span>(<span class="String"><span class="String">/</span>_<span class="String">/</span>g</span>, <span class="String"><span class="String">&quot;</span>-<span class="String">&quot;</span></span>);
};
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</pre><script>window.example23 = "String::dasherize = ->\n this.replace /_/g, \"-\"\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example23);'>Load</div><div class='minibutton ok' onclick='javascript: String.prototype.dasherize = function() {
updating documentation for classes
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return this.replace(/_/g, "-");
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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};;alert("one_two".dasherize());'>run: "one_two".dasherize()</div><br class='clear' /></div>
CoffeeScript 0.6.0 is on the books.
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<p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
Finally class definitions are blocks of executable code, which make for interesting
metaprogramming possibilities. Because in the context of a class definition,
<tt>this</tt> is the class object itself (the constructor function), you
can assign static properties by using <br /><tt>@property: value</tt>, and call
functions defined in parent classes: <tt>@attr 'title', type: 'text'</tt>
CoffeeScript 0.6.0 is on the books.
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</p>
documentation waypoint
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first working draft of the new documentation
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<p>
<span id="pattern_matching" class="bookmark"></span>
documentation for pattern matching
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<b class="header">Pattern Matching (Destructuring Assignment)</b>
CoffeeScript 0.2.4, with pattern matching and heredocs
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To make extracting values from complex arrays and objects more convenient,
CoffeeScript implements ECMAScript Harmony's proposed
documentation for pattern matching
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<a href="http://wiki.ecmascript.org/doku.php?id=harmony:destructuring">destructuring assignment</a>
syntax. When you assign an array or object literal to a value, CoffeeScript
breaks up and matches both sides against each other, assigning the values
on the right to the variables on the left. In the simplest case, it can be
used for parallel assignment:
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">theBait <span class="Keyword">=</span> <span class="Number">1000</span>
theSwitch <span class="Keyword">=</span> <span class="Number">0</span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
CoffeeScript 0.9.0
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<span class="Keyword">[</span>theBait, theSwitch<span class="Keyword">] =</span> [theSwitch, theBait]
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preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Storage">var</span> theBait, theSwitch, _ref;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
theBait <span class="Keyword">=</span> <span class="Number">1000</span>;
theSwitch <span class="Keyword">=</span> <span class="Number">0</span>;
First draft of named classes.
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_ref <span class="Keyword">=</span> [theSwitch, theBait], theBait <span class="Keyword">=</span> _ref[<span class="Number">0</span>], theSwitch <span class="Keyword">=</span> _ref[<span class="Number">1</span>];
Bumping site.
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</pre><script>window.example24 = "theBait = 1000\ntheSwitch = 0\n\n[theBait, theSwitch] = [theSwitch, theBait]\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example24);'>Load</div><div class='minibutton ok' onclick='javascript: var theBait, theSwitch, _ref;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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theBait = 1000;
theSwitch = 0;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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_ref = [theSwitch, theBait], theBait = _ref[0], theSwitch = _ref[1];;alert(theBait);'>run: theBait</div><br class='clear' /></div>
documentation for pattern matching
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<p>
But it's also helpful for dealing with functions that return multiple
values.
</p>
preparing documentation for 0.9.5
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<div class='code'><pre class="idle"><span class="FunctionName">weatherReport </span><span class="Keyword">=</span> <span class="FunctionArgument">(location)</span> <span class="Storage">-&gt;</span>
documentation for pattern matching
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<span class="Comment"><span class="Comment">#</span> Make an Ajax request to fetch the weather...</span>
[location, <span class="Number">72</span>, <span class="String"><span class="String">&quot;</span>Mostly Sunny<span class="String">&quot;</span></span>]
CoffeeScript 0.9.0
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<span class="Keyword">[</span>city, temp, forecast<span class="Keyword">] =</span> weatherReport <span class="String"><span class="String">&quot;</span>Berkeley, CA<span class="String">&quot;</span></span>
First draft of recompiling examples for 0.9.9
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preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Storage">var</span> city, forecast, temp, weatherReport, _ref;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
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<span class="FunctionName">weatherReport</span> = <span class="Storage">function</span>(<span class="FunctionArgument">location</span>) {
documentation for pattern matching
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<span class="Keyword">return</span> [location, <span class="Number">72</span>, <span class="String"><span class="String">&quot;</span>Mostly Sunny<span class="String">&quot;</span></span>];
};
First draft of named classes.
2010-10-04 23:21:16 -04:00
_ref <span class="Keyword">=</span> weatherReport(<span class="String"><span class="String">&quot;</span>Berkeley, CA<span class="String">&quot;</span></span>), city <span class="Keyword">=</span> _ref[<span class="Number">0</span>], temp <span class="Keyword">=</span> _ref[<span class="Number">1</span>], forecast <span class="Keyword">=</span> _ref[<span class="Number">2</span>];
Bumping site.
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</pre><script>window.example25 = "weatherReport = (location) ->\n # Make an Ajax request to fetch the weather...\n [location, 72, \"Mostly Sunny\"]\n\n[city, temp, forecast] = weatherReport \"Berkeley, CA\"\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example25);'>Load</div><div class='minibutton ok' onclick='javascript: var city, forecast, temp, weatherReport, _ref;
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
weatherReport = function(location) {
documentation for pattern matching
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return [location, 72, "Mostly Sunny"];
};
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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_ref = weatherReport("Berkeley, CA"), city = _ref[0], temp = _ref[1], forecast = _ref[2];;alert(forecast);'>run: forecast</div><br class='clear' /></div>
documentation for pattern matching
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<p>
Pattern matching can be used with any depth of array and object nesting,
CoffeeScript 0.2.4, with pattern matching and heredocs
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to help pull out deeply nested properties.
documentation for pattern matching
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</p>
ported and regenerated examples.
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<div class='code'><pre class="idle">futurists <span class="Keyword">=</span>
CoffeeScript 0.9.4
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sculptor: <span class="String"><span class="String">&quot;</span>Umberto Boccioni<span class="String">&quot;</span></span>
painter: <span class="String"><span class="String">&quot;</span>Vladimir Burliuk<span class="String">&quot;</span></span>
poet:
name: <span class="String"><span class="String">&quot;</span>F.T. Marinetti<span class="String">&quot;</span></span>
address: [
documentation for pattern matching
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<span class="String"><span class="String">&quot;</span>Via Roma 42R<span class="String">&quot;</span></span>
<span class="String"><span class="String">&quot;</span>Bellagio, Italy 22021<span class="String">&quot;</span></span>
]
rebuilding documentation
2010-10-05 21:05:57 -04:00
<span class="Keyword">{</span>poet: {name, address: [street, city]}<span class="Keyword">} =</span> futurists
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Storage">var</span> city, futurists, name, street, _ref, _ref2;
documentation for pattern matching
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futurists <span class="Keyword">=</span> {
sculptor: <span class="String"><span class="String">&quot;</span>Umberto Boccioni<span class="String">&quot;</span></span>,
painter: <span class="String"><span class="String">&quot;</span>Vladimir Burliuk<span class="String">&quot;</span></span>,
poet: {
name: <span class="String"><span class="String">&quot;</span>F.T. Marinetti<span class="String">&quot;</span></span>,
address: [<span class="String"><span class="String">&quot;</span>Via Roma 42R<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Bellagio, Italy 22021<span class="String">&quot;</span></span>]
}
};
preparing documentation for 0.9.5
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_ref <span class="Keyword">=</span> futurists.poet, name <span class="Keyword">=</span> _ref.<span class="LibraryConstant">name</span>, _ref2 <span class="Keyword">=</span> _ref.address, street <span class="Keyword">=</span> _ref2[<span class="Number">0</span>], city <span class="Keyword">=</span> _ref2[<span class="Number">1</span>];
Bumping site.
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</pre><script>window.example26 = "futurists =\n sculptor: \"Umberto Boccioni\"\n painter: \"Vladimir Burliuk\"\n poet:\n name: \"F.T. Marinetti\"\n address: [\n \"Via Roma 42R\"\n \"Bellagio, Italy 22021\"\n ]\n\n{poet: {name, address: [street, city]}} = futurists\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example26);'>Load</div><div class='minibutton ok' onclick='javascript: var city, futurists, name, street, _ref, _ref2;
documentation for pattern matching
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futurists = {
sculptor: "Umberto Boccioni",
painter: "Vladimir Burliuk",
poet: {
name: "F.T. Marinetti",
address: ["Via Roma 42R", "Bellagio, Italy 22021"]
}
};
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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_ref = futurists.poet, name = _ref.name, _ref2 = _ref.address, street = _ref2[0], city = _ref2[1];;alert(name + " — " + street);'>run: name + " — " + street</div><br class='clear' /></div>
CoffeeScript 0.5.6
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<p>
Pattern matching can even be combined with splats.
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">tag <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>&lt;impossible&gt;<span class="String">&quot;</span></span>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
CoffeeScript 0.9.0
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<span class="Keyword">[</span>open, contents..., close<span class="Keyword">] =</span> tag.split(<span class="String"><span class="String">&quot;</span><span class="String">&quot;</span></span>)
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
preparing documentation for 0.9.5
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</pre><pre class="idle"><span class="Storage">var</span> close, contents, open, tag, _i, _ref;
CoffeeScript 0.6.0 is on the books.
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<span class="Storage">var</span> __slice <span class="Keyword">=</span> <span class="LibraryClassType">Array</span>.<span class="LibraryConstant">prototype</span>.slice;
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
tag <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>&lt;impossible&gt;<span class="String">&quot;</span></span>;
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
_ref <span class="Keyword">=</span> tag.<span class="LibraryFunction">split</span>(<span class="String"><span class="String">&quot;</span><span class="String">&quot;</span></span>), open <span class="Keyword">=</span> _ref[<span class="Number">0</span>], contents <span class="Keyword">=</span> <span class="Number">3</span> <span class="Keyword">&lt;=</span> _ref.<span class="LibraryConstant">length</span> ? __slice.<span class="LibraryFunction">call</span>(_ref, <span class="Number">1</span>, _i <span class="Keyword">=</span> _ref.<span class="LibraryConstant">length</span> <span class="Keyword">-</span> <span class="Number">1</span>) : (_i <span class="Keyword">=</span> <span class="Number">1</span>, []), close <span class="Keyword">=</span> _ref[_i<span class="Keyword">++</span>];
Bumping site.
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</pre><script>window.example27 = "tag = \"<impossible>\"\n\n[open, contents..., close] = tag.split(\"\")\n\n\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example27);'>Load</div><div class='minibutton ok' onclick='javascript: var close, contents, open, tag, _i, _ref;
CoffeeScript 0.6.0 is on the books.
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var __slice = Array.prototype.slice;
CoffeeScript 0.5.6
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tag = "<impossible>";
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
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_ref = tag.split(""), open = _ref[0], contents = 3 <= _ref.length ? __slice.call(_ref, 1, _i = _ref.length - 1) : (_i = 1, []), close = _ref[_i++];;alert(contents.join(""));'>run: contents.join("")</div><br class='clear' /></div>
documentation for pattern matching
2010-01-11 22:55:01 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="fat_arrow" class="bookmark"></span>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<b class="header">Function binding</b>
updating the Function Binding docs with an improved explanation.
2010-03-06 19:29:41 -05:00
In JavaScript, the <tt>this</tt> keyword is dynamically scoped to mean the
object that the current function is attached to. If you pass a function as
as callback, or attach it to a different object, the original value of <tt>this</tt>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
will be lost. If you're not familiar with this behavior,
updating the Function Binding docs with an improved explanation.
2010-03-06 19:29:41 -05:00
<a href="http://www.digital-web.com/articles/scope_in_javascript/">this Digital Web article</a>
gives a good overview of the quirks.
</p>
<p>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
The fat arrow <tt>=&gt;</tt> can be used to both define a function, and to bind
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
it to the current value of <tt>this</tt>, right on the spot. This is helpful
when using callback-based libraries like Prototype or jQuery, for creating
iterator functions to pass to <tt>each</tt>, or event-handler functions
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
to use with <tt>bind</tt>. Functions created with the fat arrow are able to access
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
properties of the <tt>this</tt> where they're defined.
</p>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
<div class='code'><pre class="idle"><span class="FunctionName">Account </span><span class="Keyword">=</span> <span class="FunctionArgument">(customer, cart)</span> <span class="Storage">-&gt;</span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<span class="Variable">@customer</span> <span class="Keyword">=</span> customer
<span class="Variable">@cart</span> <span class="Keyword">=</span> cart
CoffeeScript 0.2.5 is on the books
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preparing documentation for 0.9.5
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$(<span class="String"><span class="String">'</span>.shopping_cart<span class="String">'</span></span>).bind <span class="String"><span class="String">'</span>click<span class="String">'</span></span>, <span class="FunctionArgument">(event)</span> <span class="Storage">=&gt;</span>
CoffeeScript 0.3.2, just in time for the Github feature
2010-02-08 10:58:49 -05:00
<span class="Variable">@customer</span>.purchase <span class="Variable">@cart</span>
CoffeeScript 0.2.5 is on the books
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</pre><pre class="idle"><span class="Storage">var</span> Account;
preparing documentation for 0.9.5
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<span class="Storage">var</span> <span class="FunctionName">__bind</span> = <span class="Storage">function</span>(<span class="FunctionArgument">fn, me</span>){ <span class="Keyword">return</span> <span class="Storage">function</span>(){ <span class="Keyword">return</span> fn.<span class="LibraryFunction">apply</span>(me, arguments); }; };
CoffeeScript 0.6.2
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<span class="FunctionName">Account</span> = <span class="Storage">function</span>(<span class="FunctionArgument">customer, cart</span>) {
CoffeeScript 0.2.5 is on the books
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<span class="Variable">this</span>.customer <span class="Keyword">=</span> customer;
<span class="Variable">this</span>.cart <span class="Keyword">=</span> cart;
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<span class="Keyword">return</span> <span class="Keyword">$</span>(<span class="String"><span class="String">'</span>.shopping_cart<span class="String">'</span></span>).bind(<span class="String"><span class="String">'</span>click<span class="String">'</span></span>, __bind(<span class="Storage">function</span>(<span class="LibraryClassType">event</span>) {
<span class="Keyword">return</span> <span class="Variable">this</span>.customer.purchase(<span class="Variable">this</span>.cart);
}, <span class="Variable">this</span>));
CoffeeScript 0.2.5 is on the books
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};
Bumping site.
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</pre><script>window.example28 = "Account = (customer, cart) ->\n @customer = customer\n @cart = cart\n\n $('.shopping_cart').bind 'click', (event) =>\n @customer.purchase @cart"</script><div class='minibutton load' onclick='javascript: loadConsole(example28);'>Load</div><br class='clear' /></div>
updating the Function Binding docs with an improved explanation.
2010-03-06 19:29:41 -05:00
<p>
If we had used <tt>-></tt> in the callback above, <tt>@customer</tt> would
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
have referred to the undefined "customer" property of the DOM element,
and trying to call <tt>purchase()</tt> on it would have raised an exception.
updating the Function Binding docs with an improved explanation.
2010-03-06 19:29:41 -05:00
</p>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="embedded" class="bookmark"></span>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<b class="header">Embedded JavaScript</b>
documentation for pattern matching
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Hopefully, you'll never need to use it, but if you ever need to intersperse
adding note about parens-around-ambiguous-function-defs to the docs
2010-01-11 09:09:06 -05:00
snippets of JavaScript within your CoffeeScript, you can
use backticks to pass it straight through.
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">hi <span class="Keyword">=</span> <span class="String"><span class="String">`</span>function() {</span>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
<span class="String"> return [document.title, &quot;Hello JavaScript&quot;].join(&quot;: &quot;);</span>
<span class="String">}<span class="String">`</span></span>
documentation waypoint
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docs for assignment-as-expression
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</pre><pre class="idle"><span class="Storage">var</span> hi;
<span class="FunctionName">hi</span> = <span class="Storage">function</span>() {
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<span class="Keyword">return</span> [<span class="LibraryClassType">document</span>.<span class="LibraryConstant">title</span>, <span class="String"><span class="String">&quot;</span>Hello JavaScript<span class="String">&quot;</span></span>].<span class="LibraryFunction">join</span>(<span class="String"><span class="String">&quot;</span>: <span class="String">&quot;</span></span>);
documentation waypoint
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};
Bumping site.
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</pre><script>window.example29 = "hi = `function() {\n return [document.title, \"Hello JavaScript\"].join(\": \");\n}`\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example29);'>Load</div><div class='minibutton ok' onclick='javascript: var hi;
docs for assignment-as-expression
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hi = function() {
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
return [document.title, "Hello JavaScript"].join(": ");
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
};;alert(hi());'>run: hi()</div><br class='clear' /></div>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="switch" class="bookmark"></span>
changing switch/case to switch/when -- it's a better word
2009-12-24 04:33:59 -05:00
<b class="header">Switch/When/Else</b>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
<b>Switch</b> statements in JavaScript are a bit awkward. You need to
remember to <b>break</b> at the end of every <b>case</b> statement to
avoid accidentally falling through to the default case.
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
CoffeeScript prevents accidental fall-through, and can convert the <tt>switch</tt>
into a returnable, assignable expression. The format is: <tt>switch</tt> condition,
changing switch/case to switch/when -- it's a better word
2009-12-24 04:33:59 -05:00
<tt>when</tt> clauses, <tt>else</tt> the default case.
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<p>
As in Ruby, <b>switch</b> statements in CoffeeScript can take multiple
values for each <b>when</b> clause. If any of the values match, the clause
runs.
</p>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<div class='code'><pre class="idle"><span class="Keyword">switch</span> day
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
<span class="Keyword">when</span> <span class="String"><span class="String">&quot;</span>Mon<span class="String">&quot;</span></span> <span class="Keyword">then</span> go work
<span class="Keyword">when</span> <span class="String"><span class="String">&quot;</span>Tue<span class="String">&quot;</span></span> <span class="Keyword">then</span> go relax
<span class="Keyword">when</span> <span class="String"><span class="String">&quot;</span>Thu<span class="String">&quot;</span></span> <span class="Keyword">then</span> go iceFishing
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<span class="Keyword">when</span> <span class="String"><span class="String">&quot;</span>Fri<span class="String">&quot;</span></span>, <span class="String"><span class="String">&quot;</span>Sat<span class="String">&quot;</span></span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
<span class="Keyword">if</span> day <span class="Keyword">is</span> bingoDay
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
go bingo
go dancing
<span class="Keyword">when</span> <span class="String"><span class="String">&quot;</span>Sun<span class="String">&quot;</span></span> <span class="Keyword">then</span> go church
<span class="Keyword">else</span> go work
</pre><pre class="idle"><span class="Keyword">switch</span> (day) {
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Mon<span class="String">&quot;</span></span>:
<span class="LibraryFunction">go</span>(work);
<span class="Keyword">break</span>;
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Tue<span class="String">&quot;</span></span>:
<span class="LibraryFunction">go</span>(relax);
<span class="Keyword">break</span>;
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Thu<span class="String">&quot;</span></span>:
<span class="LibraryFunction">go</span>(iceFishing);
<span class="Keyword">break</span>;
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Fri<span class="String">&quot;</span></span>:
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Sat<span class="String">&quot;</span></span>:
<span class="Keyword">if</span> (day <span class="Keyword">===</span> bingoDay) {
<span class="LibraryFunction">go</span>(bingo);
<span class="LibraryFunction">go</span>(dancing);
}
<span class="Keyword">break</span>;
<span class="Keyword">case</span> <span class="String"><span class="String">&quot;</span>Sun<span class="String">&quot;</span></span>:
<span class="LibraryFunction">go</span>(church);
<span class="Keyword">break</span>;
<span class="Keyword">default</span>:
<span class="LibraryFunction">go</span>(work);
documentation waypoint
2009-12-21 11:41:45 -05:00
}
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example30 = "switch day\n when \"Mon\" then go work\n when \"Tue\" then go relax\n when \"Thu\" then go iceFishing\n when \"Fri\", \"Sat\"\n if day is bingoDay\n go bingo\n go dancing\n when \"Sun\" then go church\n else go work"</script><div class='minibutton load' onclick='javascript: loadConsole(example30);'>Load</div><br class='clear' /></div>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="try" class="bookmark"></span>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
<b class="header">Try/Catch/Finally</b>
first draft of docs are done
2009-12-24 02:01:39 -05:00
Try/catch statements are just about the same as JavaScript (although
added some execution test
2009-12-24 03:12:07 -05:00
they work as expressions).
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
</p>
<div class='code'><pre class="idle"><span class="Keyword">try</span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
allHellBreaksLoose()
catsAndDogsLivingTogether()
documentation waypoint
2009-12-21 11:41:45 -05:00
<span class="Keyword">catch</span> error
changed the docs for optional parens
2010-01-25 00:14:00 -05:00
print error
documentation waypoint
2009-12-21 11:41:45 -05:00
<span class="Keyword">finally</span>
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
cleanUp()
Bumping site.
2010-12-12 21:41:04 -05:00
documentation waypoint
2009-12-21 11:41:45 -05:00
</pre><pre class="idle"><span class="Keyword">try</span> {
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
allHellBreaksLoose();
catsAndDogsLivingTogether();
documentation waypoint
2009-12-21 11:41:45 -05:00
} <span class="Keyword">catch</span> (error) {
<span class="LibraryFunction">print</span>(error);
} <span class="Keyword">finally</span> {
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
cleanUp();
documentation waypoint
2009-12-21 11:41:45 -05:00
}
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example31 = "try\n allHellBreaksLoose()\n catsAndDogsLivingTogether()\ncatch error\n print error\nfinally\n cleanUp()\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example31);'>Load</div><br class='clear' /></div>
documentation waypoint
2009-12-21 11:41:45 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
<span id="comparisons" class="bookmark"></span>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
<b class="header">Chained Comparisons</b>
CoffeeScript borrows
<a href="http://docs.python.org/reference/expressions.html#notin">chained comparisons</a>
from Python &mdash; making it easy to test if a value falls within a
certain range.
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">cholesterol <span class="Keyword">=</span> <span class="Number">127</span>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
healthy <span class="Keyword">=</span> <span class="Number">200</span> <span class="Keyword">&gt;</span> cholesterol <span class="Keyword">&gt;</span> <span class="Number">60</span>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
</pre><pre class="idle"><span class="Storage">var</span> cholesterol, healthy;
cholesterol <span class="Keyword">=</span> <span class="Number">127</span>;
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
healthy <span class="Keyword">=</span> (<span class="Number">200</span> <span class="Keyword">&gt;</span> cholesterol <span class="Keyword">&amp;</span><span class="Keyword">&amp;</span> cholesterol <span class="Keyword">&gt;</span> <span class="Number">60</span>);
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example32 = "cholesterol = 127\n\nhealthy = 200 > cholesterol > 60\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example32);'>Load</div><div class='minibutton ok' onclick='javascript: var cholesterol, healthy;
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
cholesterol = 127;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
healthy = (200 > cholesterol && cholesterol > 60);;alert(healthy);'>run: healthy</div><br class='clear' /></div>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
<p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<span id="strings" class="bookmark"></span>
<b class="header">String Interpolation, Heredocs, and Block Comments</b>
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
Ruby-style string interpolation is included in CoffeeScript. Double-quoted
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
strings allow for interpolated values, using <tt>#{ ... }</tt>,
and single-quoted strings are literal.
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">author <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>Wittgenstein<span class="String">&quot;</span></span>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
quote <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>A picture is a fact. -- <span class="String"><span class="String">#{</span> author <span class="String">}</span></span><span class="String">&quot;</span></span>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
sentence <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span><span class="String"><span class="String">#{</span> <span class="Number">22</span> <span class="Keyword">/</span> <span class="Number">7</span> <span class="String">}</span></span> is a decent approximation of π<span class="String">&quot;</span></span>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
</pre><pre class="idle"><span class="Storage">var</span> author, quote, sentence;
author <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>Wittgenstein<span class="String">&quot;</span></span>;
quote <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>A picture is a fact. -- <span class="String">&quot;</span></span> <span class="Keyword">+</span> author;
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
sentence <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span><span class="String">&quot;</span></span> <span class="Keyword">+</span> (<span class="Number">22</span> / <span class="Number">7</span>) <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span> is a decent approximation of π<span class="String">&quot;</span></span>;
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example33 = "author = \"Wittgenstein\"\nquote = \"A picture is a fact. -- #{ author }\"\n\nsentence = \"#{ 22 / 7 } is a decent approximation of π\"\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example33);'>Load</div><div class='minibutton ok' onclick='javascript: var author, quote, sentence;
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
author = "Wittgenstein";
quote = "A picture is a fact. -- " + author;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
sentence = "" + (22 / 7) + " is a decent approximation of π";;alert(sentence);'>run: sentence</div><br class='clear' /></div>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<p>
broken waypoint, but fixed line numbers with the new JS comments
2009-12-23 19:42:18 -05:00
Multiline strings are allowed in CoffeeScript.
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">mobyDick <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>Call me Ishmael. Some years ago --</span>
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
<span class="String"> never mind how long precisely -- having little</span>
<span class="String"> or no money in my purse, and nothing particular</span>
<span class="String"> to interest me on shore, I thought I would sail</span>
<span class="String"> about a little and see the watery part of the</span>
<span class="String"> world...<span class="String">&quot;</span></span>
waypoint
2009-12-24 01:22:41 -05:00
docs for assignment-as-expression
2009-12-26 02:17:34 -05:00
getting ready for a 0.7.0. cleanups and doc revisions, not quite there yet.
2010-06-28 00:19:58 -04:00
</pre><pre class="idle"><span class="Storage">var</span> mobyDick;
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
mobyDick <span class="Keyword">=</span> <span class="String"><span class="String">&quot;</span>Call me Ishmael. Some years ago -- never mind how long precisely -- having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world...<span class="String">&quot;</span></span>;
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example34 = "mobyDick = \"Call me Ishmael. Some years ago --\n never mind how long precisely -- having little\n or no money in my purse, and nothing particular\n to interest me on shore, I thought I would sail\n about a little and see the watery part of the\n world...\"\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example34);'>Load</div><div class='minibutton ok' onclick='javascript: var mobyDick;
prettifying coffeescript.org, part 3. Next up, Try CoffeeScript
2010-12-12 15:02:27 -05:00
mobyDick = "Call me Ishmael. Some years ago -- never mind how long precisely -- having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world...";;alert(mobyDick);'>run: mobyDick</div><br class='clear' /></div>
heredoc docs
2010-01-12 00:00:38 -05:00
<p>
Heredocs can be used to hold formatted or indentation-sensitive text
(or, if you just don't feel like escaping quotes and apostrophes). The
indentation level that begins the heredoc is maintained throughout, so
you can keep it all aligned with the body of your code.
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">html <span class="Keyword">=</span> <span class="String"><span class="String">'''</span></span>
<span class="String"> &lt;strong&gt;</span>
<span class="String"> cup of coffeescript</span>
<span class="String"> &lt;/strong&gt;</span>
<span class="String"> <span class="String">'''</span></span>
Bumping site.
2010-12-12 21:41:04 -05:00
heredoc docs
2010-01-12 00:00:38 -05:00
</pre><pre class="idle"><span class="Storage">var</span> html;
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
html <span class="Keyword">=</span> <span class="String"><span class="String">'</span>&lt;strong&gt;<span class="UserDefinedConstant">\n</span> cup of coffeescript<span class="UserDefinedConstant">\n</span>&lt;/strong&gt;<span class="String">'</span></span>;
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example35 = "html = '''\n <strong>\n cup of coffeescript\n </strong>\n '''\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example35);'>Load</div><br class='clear' /></div>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<p>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
Double-quoted heredocs, like double-quoted strings, allow interpolation.
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
</p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
<p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
Sometimes you'd like to pass a block comment through to the generated
JavaScript. For example, when you need to embed a licensing header at
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
the top of a file. Block comments, which mirror the synax for heredocs,
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
are preserved in the generated code.
</p>
<div class='code'><pre class="idle"><span class="Comment"><span class="Comment">###</span></span>
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="Comment">CoffeeScript Compiler v0.9.6</span>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
<span class="Comment">Released under the MIT License</span>
Bumping site.
2010-12-12 21:41:04 -05:00
<span class="Comment"><span class="Comment">###</span></span>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
</pre><pre class="idle"><span class="Comment"><span class="Comment">/*</span></span>
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="Comment">CoffeeScript Compiler v0.9.6</span>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
<span class="Comment">Released under the MIT License</span>
Comments are statements also, not just pure statements.
2010-10-24 21:53:48 -04:00
<span class="Comment"><span class="Comment">*/</span></span>
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example36 = "###\nCoffeeScript Compiler v0.9.6\nReleased under the MIT License\n###\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example36);'>Load</div><br class='clear' /></div>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<p>
<span id="regexes" class="bookmark"></span>
<b class="header">Extended Regular Expressions</b>
Similar to "heredocs" and "herecomments", CoffeeScript supports "heregexes" &mdash;
extended regular expressions that ignore internal whitespace and can contain
comments, after Perl's <tt>/x</tt> modifier, but delimited by <tt>///</tt>.
They go a long way towards making complex regular expressions readable.
To quote from the CoffeeScript source:
</p>
<div class='code'><pre class="idle">OPERATOR <span class="Keyword">=</span> <span class="String">/// ^ (</span>
<span class="String"> ?: [-=]&gt; <span class="Comment"><span class="Comment">#</span> function</span></span>
<span class="String"> | [-+*/%&lt;&gt;&amp;|^!?=]= <span class="Comment"><span class="Comment">#</span> compound assign / compare</span></span>
<span class="String"> | &gt;&gt;&gt;=? <span class="Comment"><span class="Comment">#</span> zero-fill right shift</span></span>
<span class="String"> | ([-+:])\1 <span class="Comment"><span class="Comment">#</span> doubles</span></span>
<span class="String"> | ([&amp;|&lt;&gt;])\2=? <span class="Comment"><span class="Comment">#</span> logic / shift</span></span>
<span class="String"> | \?\. <span class="Comment"><span class="Comment">#</span> soak access</span></span>
<span class="String"> | \.{2,3} <span class="Comment"><span class="Comment">#</span> range or splat</span></span>
<span class="String">) ///</span>
Bumping site.
2010-12-12 21:41:04 -05:00
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
</pre><pre class="idle"><span class="Storage">var</span> OPERATOR;
OPERATOR <span class="Keyword">=</span><span class="String"> <span class="String">/</span>^(?:[-=]&gt;|[-+*<span class="UserDefinedConstant">\/</span>%&lt;&gt;&amp;|^!?=]=|&gt;&gt;&gt;=?|([-+:])<span class="UserDefinedConstant">\1</span>|([&amp;|&lt;&gt;])<span class="UserDefinedConstant">\2</span>=?|<span class="UserDefinedConstant">\?</span><span class="UserDefinedConstant">\.</span>|<span class="UserDefinedConstant">\.</span>{2,3})<span class="String">/</span></span>;
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example37 = "OPERATOR = /// ^ (\n ?: [-=]> # function\n | [-+*/%<>&|^!?=]= # compound assign / compare\n | >>>=? # zero-fill right shift\n | ([-+:])\\1 # doubles\n | ([&|<>])\\2=? # logic / shift\n | \\?\\. # soak access\n | \\.{2,3} # range or splat\n) ///\n\n\n"</script><div class='minibutton load' onclick='javascript: loadConsole(example37);'>Load</div><br class='clear' /></div>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
<h2>
<span id="cake" class="bookmark"></span>
Cake, and Cakefiles
</h2>
<p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
CoffeeScript includes a simple build system similar to
<a href="http://www.gnu.org/software/make/">Make</a> and
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
<a href="http://rake.rubyforge.org/">Rake</a>. Naturally,
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
it's called Cake, and is used for the build and test tasks for the CoffeeScript
language itself. Tasks are defined in a file named <tt>Cakefile</tt>, and
can be invoked by running <tt>cake taskname</tt> from within the directory.
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
To print a list of all the tasks and options, just run <tt>cake</tt>.
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
</p>
<p>
Task definitions are written in CoffeeScript, so you can put arbitrary code
in your Cakefile. Define a task with a name, a long description, and the
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
function to invoke when the task is run. If your task takes a command-line
option, you can define the option with short and long flags, and it will
be made available in the <tt>options</tt> object. Here's a task that uses
the Node.js API to rebuild CoffeeScript's parser:
</p>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
<div class='code'><pre class="idle">fs <span class="Keyword">=</span> require <span class="String"><span class="String">'</span>fs<span class="String">'</span></span>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
option <span class="String"><span class="String">'</span>-o<span class="String">'</span></span>, <span class="String"><span class="String">'</span>--output [DIR]<span class="String">'</span></span>, <span class="String"><span class="String">'</span>directory for compiled code<span class="String">'</span></span>
preparing documentation for 0.9.5
2010-11-21 12:38:27 -05:00
task <span class="String"><span class="String">'</span>build:parser<span class="String">'</span></span>, <span class="String"><span class="String">'</span>rebuild the Jison parser<span class="String">'</span></span>, <span class="FunctionArgument">(options)</span> <span class="Storage">-&gt;</span>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
require <span class="String"><span class="String">'</span>jison<span class="String">'</span></span>
ported and regenerated examples.
2010-07-29 00:51:35 -04:00
code <span class="Keyword">=</span> require(<span class="String"><span class="String">'</span>./lib/grammar<span class="String">'</span></span>).parser.generate()
dir <span class="Keyword">=</span> options.output <span class="Keyword">or</span> <span class="String"><span class="String">'</span>lib<span class="String">'</span></span>
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
fs.writeFile <span class="String"><span class="String">&quot;</span><span class="String"><span class="String">#{</span>dir<span class="String">}</span></span>/parser.js<span class="String">&quot;</span></span>, code
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
</pre><pre class="idle"><span class="Storage">var</span> fs;
fs <span class="Keyword">=</span> require(<span class="String"><span class="String">'</span>fs<span class="String">'</span></span>);
option(<span class="String"><span class="String">'</span>-o<span class="String">'</span></span>, <span class="String"><span class="String">'</span>--output [DIR]<span class="String">'</span></span>, <span class="String"><span class="String">'</span>directory for compiled code<span class="String">'</span></span>);
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
task(<span class="String"><span class="String">'</span>build:parser<span class="String">'</span></span>, <span class="String"><span class="String">'</span>rebuild the Jison parser<span class="String">'</span></span>, <span class="Storage">function</span>(options) {
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
<span class="Storage">var</span> code, dir;
require(<span class="String"><span class="String">'</span>jison<span class="String">'</span></span>);
code <span class="Keyword">=</span> require(<span class="String"><span class="String">'</span>./lib/grammar<span class="String">'</span></span>).parser.generate();
dir <span class="Keyword">=</span> options.output <span class="Keyword">||</span> <span class="String"><span class="String">'</span>lib<span class="String">'</span></span>;
rebuilding documentation
2010-10-05 21:05:57 -04:00
<span class="Keyword">return</span> fs.writeFile(<span class="String"><span class="String">&quot;</span><span class="String">&quot;</span></span> <span class="Keyword">+</span> dir <span class="Keyword">+</span> <span class="String"><span class="String">&quot;</span>/parser.js<span class="String">&quot;</span></span>, code);
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
});
Bumping site.
2010-12-12 21:41:04 -05:00
</pre><script>window.example38 = "fs = require 'fs'\n\noption '-o', '--output [DIR]', 'directory for compiled code'\n\ntask 'build:parser', 'rebuild the Jison parser', (options) ->\n require 'jison'\n code = require('./lib/grammar').parser.generate()\n dir = options.output or 'lib'\n fs.writeFile \"#{dir}/parser.js\", code"</script><div class='minibutton load' onclick='javascript: loadConsole(example38);'>Load</div><br class='clear' /></div>
documenting 'invoke' in Cakefiles a little bit.
2010-09-17 20:24:10 -04:00
<p>
If you need to invoke one task before another &mdash; for example, running
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
<tt>build</tt> before <tt>test</tt>, you can use the <tt>invoke</tt> function:
documenting 'invoke' in Cakefiles a little bit.
2010-09-17 20:24:10 -04:00
<tt>invoke 'build'</tt>
</p>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
<h2>
<span id="scripts" class="bookmark"></span>
"text/coffeescript" Script Tags
</h2>
<p>
While it's not recommended for serious use, CoffeeScripts may be included
directly within the browser using <tt>&lt;script type="text/coffeescript"&gt;</tt>
improving CoffeeScript in browser script activation, and updating docs
2010-02-25 06:26:27 -05:00
tags. The source includes a compressed and minified version of the compiler
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
(<a href="extras/coffee-script.js">Download current version here, 39k when gzipped</a>)
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
as <tt>extras/coffee-script.js</tt>. Include this file on a page with
improving CoffeeScript in browser script activation, and updating docs
2010-02-25 06:26:27 -05:00
inline CoffeeScript tags, and it will compile and evaluate them in order.
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
</p>
<p>
In fact, the little bit of glue script that runs "Try CoffeeScript" above,
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
as well as jQuery for the menu, is implemented in just this way.
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
View source and look at the bottom of the page to see the example.
Including the script also gives you access to <tt>CoffeeScript.compile()</tt>
so you can pop open Firebug and try compiling some strings.
</p>
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
<p>
The usual caveats about CoffeeScript apply &mdash; your inline scripts will
run within a closure wrapper, so if you want to expose global variables or
functions, attach them to the <tt>window</tt> object.
</p>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<h2>
<span id="examples" class="bookmark"></span>
Examples
</h2>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<ul>
<li>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<b>frank06</b>'s <a href="http://riakjs.org/">riak-js</a>, a Node.js client for
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<a href="http://www.basho.com/Riak.html">Riak</a>, with support for HTTP
and Protocol Buffers.
</li>
<li>
<b>technoweenie</b>'s <a href="https://github.com/technoweenie/coffee-resque">Coffee-Resque</a>,
a port of <a href="https://github.com/defunkt/resque">Resque</a> for Node.js.
</li>
<li>
<b>jashkenas</b>' <a href="documentation/docs/underscore.html">Underscore.coffee</a>, a port
of the <a href="http://documentcloud.github.com/underscore/">Underscore.js</a>
library of helper functions.
</li>
<li>
<b>stephank</b>'s <a href="https://github.com/stephank/orona">Orona</a>, a remake of
the Bolo tank game for modern browsers.
</li>
<li>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<b>josh</b>'s <a href="http://josh.github.com/nack/">nack</a>, a Node.js-powered
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<a href="http://rack.rubyforge.org/">Rack</a> server.
</li>
<li>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<b>sstephenson</b>'s <a href="http://sstephenson.github.com/strscan-js/">StringScanner</a>,
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
a simple tokenizer and lexical scanner for JavaScript strings.
</li>
</ul>
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<h2>
<span id="resources" class="bookmark"></span>
Resources
</h2>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
adding a note in the docs about how to build the parser and install the gem
2009-12-31 18:22:51 -05:00
<ul>
<li>
<a href="http://github.com/jashkenas/coffee-script/">Source Code</a><br />
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
Use <tt>bin/coffee</tt> to test your changes,<br />
<tt>bin/cake test</tt> to run the test suite,<br />
<tt>bin/cake build</tt> to rebuild the CoffeeScript compiler, and <br />
<tt>bin/cake build:parser</tt> to regenerate the Jison parser if you're
adding a note about the 'git co lib' - build twice shuffle to the docs -- there's been more than one question about it already.
2010-03-07 21:57:08 -05:00
working on the grammar. <br /><br />
make sure that the source-hacking docs mention to 'git checkout lib'
2010-03-23 00:25:37 -04:00
<tt>git checkout lib &amp;&amp; bin/cake build:full</tt> is a good command to run when you're working
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
on the core language. It'll refresh the lib directory
(in case you broke something), build your altered compiler, use that to
adding a note about the 'git co lib' - build twice shuffle to the docs -- there's been more than one question about it already.
2010-03-07 21:57:08 -05:00
rebuild itself (a good sanity test) and then run all of the tests. If
they pass, there's a good chance you've made a successful change.
adding a note in the docs about how to build the parser and install the gem
2009-12-31 18:22:51 -05:00
</li>
<li>
updating resources section with rack-coffee
2010-01-27 16:38:49 -05:00
<a href="http://github.com/jashkenas/coffee-script/issues">CoffeeScript Issues</a><br />
Bugs reports, feature requests, and general discussion all belong here.
adding a note in the docs about how to build the parser and install the gem
2009-12-31 18:22:51 -05:00
</li>
updating docs with #coffeescript channel
2010-02-15 18:58:27 -05:00
<li>
doc update
2010-02-25 17:18:28 -05:00
If you'd like to chat, stop by <tt>#coffeescript</tt> on Freenode in the
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
IRC client of your choice, or on
doc update
2010-02-25 17:18:28 -05:00
<a href="http://webchat.freenode.net/">webchat.freenode.net</a>.
updating docs with #coffeescript channel
2010-02-15 18:58:27 -05:00
</li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<li>
<b>satyr</b>'s <a href="http://github.com/satyr/coco">Coco</a>
&mdash; a CoffeeScript dialect that aims to be more radical and practical.
</li>
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<li>
<b>yeungda</b>'s <a href="http://github.com/yeungda/jcoffeescript">JCoffeeScript</a>
&mdash; A Java Library that uses Rhino to compile CoffeeScript, allowing
compilation within Java projects or on systems that Node.js doesn't support.
</li>
adding coffee-mode and rack-coffee to the Resources section of the docs
2010-03-07 17:52:14 -05:00
<li>
<b>defunkt</b>'s <a href="http://github.com/defunkt/coffee-mode">CoffeeScript Major Mode</a>
&mdash; a Emacs major mode that provides syntax highlighting, indentation
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
support, and some bonus commands.
</li>
<li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<b>jashkenas</b>' <a href="http://github.com/jashkenas/coffee-script-tmbundle">CoffeeScript TextMate Bundle</a>
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
&mdash; which provides syntax highlighting, snippet expansion, and the
ability to run bits of CoffeeScript from within TextMate itself.
</li>
<li>
<b>kchmck</b>'s <a href="http://github.com/kchmck/vim-coffee-script">Vim CoffeeScript</a>
&mdash; which adds Vim syntax highlighting and indentation support.
adding coffee-mode and rack-coffee to the Resources section of the docs
2010-03-07 17:52:14 -05:00
</li>
rebuilding docs and compressed version for CoffeeScript 0.7.1
2010-07-11 10:40:44 -04:00
<li>
<b>wavded</b>'s <a href="http://github.com/wavded/gedit-coffeescript">gedit-coffeescript</a>
&mdash; a CoffeeScript syntax highlighter for the gedit text editor.
</li>
adding 'coffeescript-idea' to the resources section.
2010-04-13 23:41:18 -04:00
<li>
<b>yeungda</b>'s <a href="http://yeungda.github.com/coffeescript-idea/">coffeescript-idea</a>
&mdash; a plugin for IntelliJ IDEA and RubyMine providing syntax highlighting.
</li>
adding coffee-mode and rack-coffee to the Resources section of the docs
2010-03-07 17:52:14 -05:00
<li>
<b>mattly</b>'s <a href="http://github.com/mattly/rack-coffee">rack-coffee</a>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
&mdash; a small Rack middleware for serving CoffeeScript files as
adding coffee-mode and rack-coffee to the Resources section of the docs
2010-03-07 17:52:14 -05:00
compiled JavaScript on the fly.
</li>
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
<li>
<b>jnicklas</b>'s <a href="http://github.com/jnicklas/bistro_car">BistroCar</a>
&mdash; a plugin that serves and bundles CoffeeScript from within your
Rails application.
</li>
added dsc's coffeecup to the resources section.
2010-07-05 08:51:45 -04:00
<li>
<b>dsc</b>'s <a href="http://github.com/dsc/coffeecup">CoffeeCup</a>
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
&mdash; a Python WSGI middleware that compiles CoffeeScript to JavaScript
added dsc's coffeecup to the resources section.
2010-07-05 08:51:45 -04:00
on-demand during development.
</li>
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<li>
<b>sutto</b>'s <a href="http://github.com/Sutto/barista">Barista</a>
&mdash; a BistroCar alternative that integrates well with
<a href="http://documentcloud.github.com/jammit">Jammit</a> and Rails 3.
</li>
adding coffee-haml-filter to the docs
2010-04-11 17:57:29 -04:00
<li>
<b>inem</b> and <b>gerad</b>'s <a href="http://github.com/gerad/coffee-haml-filter">coffee-haml-filter</a>
&mdash; a custom filter for rendering CoffeeScript inline within
<a href="http://haml-lang.com/">HAML</a> templates.
</li>
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
<li>
<b>chrislloyd</b>'s <a href="http://github.com/chrislloyd/roast">Roast</a>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
&mdash; a CoffeeScript compiler plug-in that allows you to include external
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
source files.
</li>
going back to the Closure Compiler.
2010-10-19 21:59:13 -04:00
<li>
<b>andrzejsliwa</b>'s <a href="http://github.com/andrzejsliwa/coffeeapp">CoffeeApp</a>
&mdash; a CoffeeScript wrapper for CouchApps, web applications served
directly from CouchDB.
</li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<li>
<b>sstephenson</b>'s <a href="http://github.com/sstephenson/eco">Eco</a>
&mdash; high-performance embedded CoffeeScript templates, after EJS and ERB.
</li>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
<li>
<b>mauricemach</b>'s <a href="http://github.com/mauricemach/coffeekup">CoffeeKup</a>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
&mdash; Markup as CoffeeScript. After _why's
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
<a href="http://markaby.github.com/">Markaby</a>.
</li>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<b>jashkenas</b>' <a href="http://jashkenas.github.com/docco/">Docco</a>
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
&mdash; a quick-and-dirty literate-programming-style documentation generator
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
for CoffeeScript. Used to produce the annotated source.
</li>
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
<li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<b>naturalethic</b>'s <a href="http://github.com/naturalethic/Congo">Congo</a>
&mdash; an asynchronous MongoDB ORM, for use with Node.js and CoffeeScript.
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
</li>
<li>
continuing to document the homepage for 0.9.5 ... removing an optimization for local variables within loops.
2010-11-21 19:53:31 -05:00
<b>mauricemach</b>'s <a href="https://github.com/mauricemach/zappa">Zappa</a>
&mdash; a DSL for building web apps, built on top of Express and Socket.IO.
First draft of recompiling examples for 0.9.9
2010-10-24 21:50:34 -04:00
</li>
adding a note in the docs about how to build the parser and install the gem
2009-12-31 18:22:51 -05:00
</ul>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
adding webchat to the doc page
2010-04-10 13:42:39 -04:00
<h2>
<span id="webchat" class="bookmark"></span>
Web Chat (IRC)
</h2>
<p>
Quick help and advice can usually be found in the CoffeeScript IRC room.
Join <tt>#coffeescript</tt> on <tt>irc.freenode.net</tt>, or click the
button below to open a webchat session on this page.
</p>
<p>
<button id="open_webchat">click to open #coffeescript</button>
</p>
first working draft of the new documentation
2010-02-21 14:30:21 -05:00
<h2>
<span id="change_log" class="bookmark"></span>
Change Log
</h2>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.6
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 6, 2010</small></span>
</b>
The REPL now properly formats stacktraces, and stays alive through
asynchronous exceptions. Using <tt>--watch</tt> now prints timestamps as
files are compiled. Fixed some accidentally-leaking variables within
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
plucked closure-loops. Constructors now maintain their declaration
location within a class body. Dynamic object keys were removed.
Nested classes are now supported. Fixes execution context for naked
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
splatted functions. Bugfix for inversion of chained comparisons.
Chained class instantiation now works properly with splats.
</p>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.5
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Nov 21, 2010</small></span>
</b>
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
0.9.5 should be considered the first release candidate for CoffeeScript 1.0.
There have been a large number of internal changes since the previous release,
many contributed from <b>satyr</b>'s <a href="http://github.com/satyr/coco">Coco</a>
dialect of CoffeeScript. Heregexes (extended regexes) were added. Functions
can now have default arguments. Class bodies are now executable code.
Adding precedence change note to changelog
2010-12-01 14:17:10 -05:00
Improved syntax errors for invalid CoffeeScript. <tt>undefined</tt> now
CoffeeScript 0.9.5
2010-11-21 21:19:49 -05:00
works like <tt>null</tt>, and cannot be assigned a new value.
Adding precedence change note to changelog
2010-12-01 14:17:10 -05:00
There was a precedence change with respect to single-line comprehensions:
redocumenting slices/splices ... issue #833
2010-12-04 12:52:51 -05:00
<tt>result = i for i in list</tt><br /> used to parse as <tt>result = (i for i in list)</tt>
Adding warning about accidentally-comprehended-functions. Issue #896.
2010-12-05 15:29:28 -05:00
by default ... it now parses as <br /><tt>(result = i) for i in list</tt>.
Switching default arguments to use an if instead of an and, more documentation.
2010-11-21 21:12:59 -05:00
</p>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.4
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Sep 21, 2010</small></span>
</b>
CoffeeScript 0.9.4
2010-09-21 23:58:05 -04:00
CoffeeScript now uses appropriately-named temporary variables, and recycles
their references after use. Added <tt>require.extensions</tt> support for
<b>Node.js 0.3</b>. Loading CoffeeScript in the browser now adds just a
single <tt>CoffeeScript</tt> object to global scope.
Fixes for implicit object and block comment edge cases.
</p>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.3
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Sep 16, 2010</small></span>
</b>
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
CoffeeScript <tt>switch</tt> statements now compile into JS <tt>switch</tt>
rebuilt the site with some IE fixes.
2010-09-27 15:21:45 -04:00
statements &mdash; they previously compiled into <tt>if/else</tt> chains
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
for JavaScript 1.3 compatibility.
Soaking a function invocation is now supported. Users of the RubyMine
editor should now be able to use <tt>--watch</tt> mode.
</p>
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Aug 23, 2010</small></span>
</b>
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
Specifying the start and end of a range literal is now optional, eg. <tt>array[3..]</tt>.
You can now say <tt>a not instanceof b</tt>.
Fixed important bugs with nested significant and non-significant indentation (Issue #637).
Added a <tt>--require</tt> flag that allows you to hook into the <tt>coffee</tt> command.
Added a custom <tt>jsl.conf</tt> file for our preferred JavaScriptLint setup.
Sped up Jison grammar compilation time by flattening rules for operations.
Block comments can now be used with JavaScript-minifier-friendly syntax.
Added JavaScript's compound assignment bitwise operators. Bugfixes to
implicit object literals with leading number and string keys, as the subject
of implicit calls, and as part of compound assignment.
</p>
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Aug 11, 2010</small></span>
</b>
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
Bugfix release for <b>0.9.1</b>. Greatly improves the handling of mixed
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
implicit objects, implicit function calls, and implicit indentation.
CoffeeScript 0.9.1 is on the books.
2010-08-11 00:40:15 -04:00
String and regex interpolation is now strictly <tt>#{ ... }</tt> (Ruby style).
The compiler now takes a <tt>--require</tt> flag, which specifies scripts
to run before compilation.
</p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.9.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Aug 4, 2010</small></span>
</b>
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
The CoffeeScript <b>0.9</b> series is considered to be a release candidate
for <b>1.0</b>; let's give her a shakedown cruise. <b>0.9.0</b> introduces a massive
backwards-incompatible change: Assignment now uses <tt>=</tt>, and object
literals use <tt>:</tt>, as in JavaScript. This allows us to have implicit
object literals, and YAML-style object definitions. Half assignments are
removed, in favor of <tt>+=</tt>, <tt>or=</tt>, and friends.
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
Interpolation now uses a hash mark <tt>#</tt> instead of the dollar sign
CoffeeScript 0.9.0
2010-08-04 23:14:34 -04:00
<tt>$</tt> &mdash; because dollar signs may be part of a valid JS identifier.
more additions to the documentation for 0.9.0
2010-08-03 01:13:31 -04:00
Downwards range comprehensions are now safe again, and are optimized to
straight for loops when created with integer endpoints.
A fast, unguarded form of object comprehension was added:
<tt>for all key, value of object</tt>. Mentioning the <tt>super</tt> keyword
with no arguments now forwards all arguments passed to the function,
as in Ruby. If you extend class <tt>B</tt> from parent class <tt>A</tt>, if
<tt>A</tt> has an <tt>extended</tt> method defined, it will be called, passing in <tt>B</tt> &mdash;
this enables static inheritance, among other things. Cleaner output for
functions bound with the fat arrow. <tt>@variables</tt> can now be used
in parameter lists, with the parameter being automatically set as a property
on the object &mdash; useful in constructors and setter functions.
Constructor functions can now take splats.
</p>
CoffeeScript 0.9.2
2010-08-23 22:08:33 -04:00
adding 0.7.2 changelog to the docco, as per request.
2010-07-13 23:39:58 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.7.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jul 12, 2010</small></span>
</b>
adding 0.7.2 changelog to the docco, as per request.
2010-07-13 23:39:58 -04:00
Quick bugfix (right after 0.7.1) for a problem that prevented <tt>coffee</tt>
command-line options from being parsed in some circumstances.
</p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
rebuilding docs and compressed version for CoffeeScript 0.7.1
2010-07-11 10:40:44 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.7.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jul 11, 2010</small></span>
</b>
rebuilding docs and compressed version for CoffeeScript 0.7.1
2010-07-11 10:40:44 -04:00
Block-style comments are now passed through and printed as JavaScript block
comments -- making them useful for licenses and copyright headers. Better
support for running coffee scripts standalone via hashbangs.
Improved syntax errors for tokens that are not in the grammar.
</p>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.7.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jun 28, 2010</small></span>
</b>
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
Official CoffeeScript variable style is now camelCase, as in JavaScript.
Reserved words are now allowed as object keys, and will be quoted for you.
Range comprehensions now generate cleaner code, but you have to specify <tt>by -1</tt>
Updating documentation with endtime's suggestions.
2010-07-17 10:28:06 -04:00
if you'd like to iterate downward. Reporting of syntax errors is greatly
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
improved from the previous release. Running <tt>coffee</tt> with no arguments
fixing html entity in the changelog
2010-06-30 19:51:49 -04:00
now launches the REPL, with Readline support. The <tt>&lt;-</tt> bind operator
CoffeeScript 0.7.0 is on the books.
2010-06-28 01:00:53 -04:00
has been removed from CoffeeScript. The <tt>loop</tt> keyword was added,
which is equivalent to a <tt>while true</tt> loop. Comprehensions that contain
closures will now close over their variables, like the semantics of a <tt>forEach</tt>.
You can now use bound function in class definitions (bound to the instance).
For consistency, <tt>a in b</tt> is now an array presence check, and <tt>a of b</tt>
is an object-key check. Comments are no longer passed through to the generated
JavaScript.
</p>
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.6.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>May 15, 2010</small></span>
</b>
CoffeeScript 0.6.2
2010-05-15 01:18:05 -04:00
The <tt>coffee</tt> command will now preserve directory structure when
compiling a directory full of scripts. Fixed two omissions that were preventing
the CoffeeScript compiler from running live within Internet Explorer.
There's now a syntax for block comments, similar in spirit to CoffeeScript's heredocs.
ECMA Harmony DRY-style pattern matching is now supported, where the name
of the property is the same as the name of the value: <tt>{name, length}: func</tt>.
Pattern matching is now allowed within comprehension variables. <tt>unless</tt>
is now allowed in block form. <tt>until</tt> loops were added, as the inverse
of <tt>while</tt> loops. <tt>switch</tt> statements are now allowed without
switch object clauses. Compatible
with Node.js <b>v0.1.95</b>.
</p>
CoffeeScript 0.6.1, for Node.js v0.1.90
2010-04-12 21:20:00 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.6.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Apr 12, 2010</small></span>
</b>
CoffeeScript 0.6.1, for Node.js v0.1.90
2010-04-12 21:20:00 -04:00
Upgraded CoffeeScript for compatibility with the new Node.js <b>v0.1.90</b>
series.
</p>
adding webchat to the doc page
2010-04-10 13:42:39 -04:00
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.6.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Apr 3, 2010</small></span>
</b>
adding webchat to the doc page
2010-04-10 13:42:39 -04:00
Trailing commas are now allowed, a-la Python. Static
properties may be assigned directly within class definitions,
CoffeeScript 0.6.0 is on the books.
2010-04-03 20:43:50 -04:00
using <tt>@property</tt> notation.
</p>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.6
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Mar 23, 2010</small></span>
</b>
CoffeeScript 0.5.6
2010-03-23 00:18:50 -04:00
Interpolation can now be used within regular expressions and heredocs, as well as
strings. Added the <tt>&lt;-</tt> bind operator.
Allowing assignment to half-expressions instead of special <tt>||=</tt>-style
operators. The arguments object is no longer automatically converted into
an array. After requiring <tt>coffee-script</tt>, Node.js can now directly
load <tt>.coffee</tt> files, thanks to <b>registerExtension</b>. Multiple
splats can now be used in function calls, arrays, and pattern matching.
</p>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.5
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Mar 8, 2010</small></span>
</b>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
String interpolation, contributed by
<a href="http://github.com/StanAngeloff">Stan Angeloff</a>.
Since <tt>--run</tt> has been the default since <b>0.5.3</b>, updating
<tt>--stdio</tt> and <tt>--eval</tt> to run by default, pass <tt>--compile</tt>
as well if you'd like to print the result.
</p>
Updating docs for CoffeeScript 0.5.4. Tag it and bag it.
2010-03-03 23:01:53 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.4
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Mar 3, 2010</small></span>
</b>
Updating docs for CoffeeScript 0.5.4. Tag it and bag it.
2010-03-03 23:01:53 -05:00
Bugfix that corrects the Node.js global constants <tt>__filename</tt> and
<tt>__dirname</tt>. Tweaks for more flexible parsing of nested function
literals and improperly-indented comments. Updates for the latest Node.js API.
</p>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
CoffeeScript 0.5.3, with classes
2010-02-27 20:21:46 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.3
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Feb 27, 2010</small></span>
</b>
CoffeeScript 0.5.5, with string interpolation and internal documentation
2010-03-08 06:34:07 -05:00
CoffeeScript now has a syntax for defining classes. Many of the core
CoffeeScript 0.5.3, with classes
2010-02-27 20:21:46 -05:00
components (Nodes, Lexer, Rewriter, Scope, Optparse) are using them.
Cakefiles can use <tt>optparse.coffee</tt> to define options for tasks.
<tt>--run</tt> is now the default flag for the <tt>coffee</tt> command,
use <tt>--compile</tt> to save JavaScripts. Bugfix for an ambiguity between
RegExp literals and chained divisions.
</p>
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Feb 25, 2010</small></span>
</b>
docs for CoffeeScript 0.5.2, which is now out.
2010-02-25 00:26:59 -05:00
Added a compressed version of the compiler for inclusion in web pages as
<br /><tt>extras/coffee-script.js</tt>. It'll automatically run any script tags
with type <tt>text/coffeescript</tt> for you. Added a <tt>--stdio</tt> option
to the <tt>coffee</tt> command, for piped-in compiles.
</p>
using text instead of html to escape entities in the rendered JS for Try CoffeeScript
2010-02-25 18:20:15 -05:00
adding documentation for --stdio
2010-02-24 18:27:10 -05:00
bumping to 0.5.1
2010-02-24 00:54:07 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Feb 24, 2010</small></span>
</b>
bumping to 0.5.1
2010-02-24 00:54:07 -05:00
Improvements to null soaking with the existential operator, including
soaks on indexed properties. Added conditions to <tt>while</tt> loops,
so you can use them as filters with <tt>when</tt>, in the same manner as
comprehensions.
</p>
making the docs a little less jumpy with more stable menus
2010-02-21 23:29:31 -05:00
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.5.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Feb 21, 2010</small></span>
</b>
adding /usr/local/lib hardcoded versions of coffee and cake for the install script
2010-02-21 19:19:58 -05:00
CoffeeScript 0.5.0 is a major release, While there are no language changes,
the Ruby compiler has been removed in favor of a self-hosting
compiler written in pure CoffeeScript.
documentation for Cake and Cakefiles
2010-02-21 18:37:52 -05:00
</p>
got coffeescript compiling in the browser
2010-02-13 15:25:04 -05:00
CoffeeScript 0.3.2, just in time for the Github feature
2010-02-08 10:58:49 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.3.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Feb 8, 2010</small></span>
</b>
CoffeeScript 0.3.2, just in time for the Github feature
2010-02-08 10:58:49 -05:00
<tt>@property</tt> is now a shorthand for <tt>this.property</tt>.<br />
Switched the default JavaScript engine from Narwhal to Node.js. Pass
the <tt>--narwhal</tt> flag if you'd like to continue using it.
</p>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
added a wish list to the docs
2009-12-24 12:54:12 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.3.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 26, 2010</small></span>
</b>
updating documentation for 0.3
2010-01-26 23:23:59 -05:00
CoffeeScript 0.3 includes major syntax changes:
<br />
The function symbol was changed to
<tt>-></tt>, and the bound function symbol is now <tt>=></tt>.
<br />
Parameter lists in function definitions must now be wrapped in parentheses.
<br />
Added property soaking, with the <tt>?.</tt> operator.
<br />
Made parentheses optional, when invoking functions with arguments.
<br />
Removed the obsolete block literal syntax.
added a wish list to the docs
2009-12-24 12:54:12 -05:00
</p>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.6
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 17, 2010</small></span>
</b>
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
Added Python-style chained comparisons, the conditional existence
operator <tt>?=</tt>, and some examples from <i>Beautiful Code</i>.
Bugfixes relating to statement-to-expression conversion, arguments-to-array
conversion, and the TextMate syntax highlighter.
</p>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.5
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 13, 2010</small></span>
</b>
CoffeeScript 0.2.5 is on the books
2010-01-13 23:24:45 -05:00
The conditions in switch statements can now take multiple values at once &mdash;
If any of them are true, the case will run. Added the long arrow <tt>==></tt>,
which defines and immediately binds a function to <tt>this</tt>. While loops can
now be used as expressions, in the same way that comprehensions can. Splats
can be used within pattern matches to soak up the rest of an array.
</p>
CoffeeScript 0.2.4, with pattern matching and heredocs
2010-01-12 00:09:23 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.4
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 12, 2010</small></span>
</b>
CoffeeScript 0.2.4, with pattern matching and heredocs
2010-01-12 00:09:23 -05:00
Added ECMAScript Harmony style destructuring assignment, for dealing with
extracting values from nested arrays and objects. Added indentation-sensitive
heredocs for nicely formatted strings or chunks of code.
</p>
documentation for pattern matching
2010-01-11 22:55:01 -05:00
CoffeeScript 0.2.3, with 'of', not 'ino'
2010-01-11 00:01:16 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.3
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 11, 2010</small></span>
</b>
CoffeeScript 0.2.3, with 'of', not 'ino'
2010-01-11 00:01:16 -05:00
Axed the unsatisfactory <tt>ino</tt> keyword, replacing it with <tt>of</tt> for
adding note about parens-around-ambiguous-function-defs to the docs
2010-01-11 09:09:06 -05:00
object comprehensions. They now look like: <tt>for prop, value of object</tt>.
CoffeeScript 0.2.3, with 'of', not 'ino'
2010-01-11 00:01:16 -05:00
</p>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
removing object comprehensions from CoffeeScript, they were necessitating the generation of too much ugly JS
2010-01-10 14:45:44 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 10, 2010</small></span>
</b>
adding '::' as shorthand for '.prototype.'
2010-01-10 16:16:59 -05:00
When performing a comprehension over an object, use <tt>ino</tt>, instead
of <tt>in</tt>, which helps us generate smaller, more efficient code at
compile time.
<br />
Added <tt>::</tt> as a shorthand for saying <tt>.prototype.</tt>
<br />
removing object comprehensions from CoffeeScript, they were necessitating the generation of too much ugly JS
2010-01-10 14:45:44 -05:00
The "splat" symbol has been changed from a prefix asterisk <tt>*</tt>, to
adding '::' as shorthand for '.prototype.'
2010-01-10 16:16:59 -05:00
a postfix ellipsis <tt>...</tt>
<br />
Added JavaScript's <tt>in</tt> operator,
removing object comprehensions from CoffeeScript, they were necessitating the generation of too much ugly JS
2010-01-10 14:45:44 -05:00
empty <tt>return</tt> statements, and empty <tt>while</tt> loops.
adding '::' as shorthand for '.prototype.'
2010-01-10 16:16:59 -05:00
<br />
removing object comprehensions from CoffeeScript, they were necessitating the generation of too much ugly JS
2010-01-10 14:45:44 -05:00
Constructor functions that start with capital letters now include a
safety check to make sure that the new instance of the object is returned.
adding '::' as shorthand for '.prototype.'
2010-01-10 16:16:59 -05:00
<br />
removing object comprehensions from CoffeeScript, they were necessitating the generation of too much ugly JS
2010-01-10 14:45:44 -05:00
The <tt>extends</tt> keyword now functions identically to <tt>goog.inherits</tt>
in Google's Closure Library.
</p>
docs for arguments conversion
2010-01-05 09:29:10 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 5, 2010</small></span>
</b>
docs for arguments conversion
2010-01-05 09:29:10 -05:00
Arguments objects are now converted into real arrays when referenced.
</p>
tweaking docs
2010-01-05 00:19:22 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.2.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Jan 5, 2010</small></span>
</b>
tweaking docs
2010-01-05 00:19:22 -05:00
Major release. Significant whitespace. Better statement-to-expression
conversion. Splats. Splice literals. Object comprehensions. Blocks.
CoffeeScript 0.2.6 is on the books
2010-01-17 18:12:59 -05:00
The existential operator. Many thanks to all the folks who posted issues,
docs for arguments conversion
2010-01-05 09:29:10 -05:00
with special thanks to
CoffeeScript 0.9.3
2010-09-16 00:32:57 -04:00
<a href="http://github.com/liamoc">Liam O'Connor-Davis</a> for whitespace
tweaking docs
2010-01-05 00:19:22 -05:00
and expression help.
</p>
CoffeeScript 0.1.6 -- bugfixes
2009-12-27 15:49:11 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.6
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 27, 2009</small></span>
</b>
CoffeeScript 0.1.6 -- bugfixes
2009-12-27 15:49:11 -05:00
Bugfix for running <tt>coffee --interactive</tt> and <tt>--run</tt>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
from outside of the CoffeeScript directory. Bugfix for nested
function/if-statements.
CoffeeScript 0.1.6 -- bugfixes
2009-12-27 15:49:11 -05:00
</p>
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
coffeescript 0.1.5, just for kicks
2009-12-27 00:25:37 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.5
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 26, 2009</small></span>
</b>
coffeescript 0.1.5, just for kicks
2009-12-27 00:25:37 -05:00
Array slice literals and array comprehensions can now both take Ruby-style
adding a rake:ultraviolet build syntax highlighter task, and regenerating the docs with correct highlighting
2009-12-31 13:01:10 -05:00
ranges to specify the start and end. JavaScript variable declaration is
now pushed up to the top of the scope, making all assignment statements into
coffeescript 0.1.5, just for kicks
2009-12-27 00:25:37 -05:00
expressions. You can use <tt>\</tt> to escape newlines.
The <tt>coffee-script</tt> command is now called <tt>coffee</tt>.
</p>
documenting ranges and slices
2009-12-25 19:35:57 -05:00
CoffeeScript 0.1.4
2009-12-25 17:43:24 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.4
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 25, 2009</small></span>
</b>
CoffeeScript 0.1.4
2009-12-25 17:43:24 -05:00
The official CoffeeScript extension is now <tt>.coffee</tt> instead of
documenting ranges and slices
2009-12-25 19:35:57 -05:00
<tt>.cs</tt>, which properly belongs to
CoffeeScript 0.1.4
2009-12-25 17:43:24 -05:00
<a href="http://en.wikipedia.org/wiki/C_Sharp_(programming_language)">C#</a>.
Due to popular demand, you can now also use <tt>=</tt> to assign. Unlike
JavaScript, <tt>=</tt> can also be used within object literals, interchangeably
documenting ranges and slices
2009-12-25 19:35:57 -05:00
with <tt>:</tt>. Made a grammatical fix for chained function calls
like <tt>func(1)(2)(3)(4)</tt>. Inheritance and super no longer use
<tt>__proto__</tt>, so they should be IE-compatible now.
CoffeeScript 0.1.4
2009-12-25 17:43:24 -05:00
</p>
moved the coffeescript extension over from .cs to .coffee -- let's leave C# in peace. Changed array comprehensions to always return their mapped result, even when unassigned
2009-12-25 17:18:05 -05:00
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.3
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 25, 2009</small></span>
</b>
changed bin/coffee-script to bin/coffee
2009-12-26 11:57:13 -05:00
The <tt>coffee</tt> command now includes <tt>--interactive</tt>,
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
which launches an interactive CoffeeScript session, and <tt>--run</tt>,
which directly compiles and executes a script. Both options depend on a
working installation of Narwhal.
moved the coffeescript extension over from .cs to .coffee -- let's leave C# in peace. Changed array comprehensions to always return their mapped result, even when unassigned
2009-12-25 17:18:05 -05:00
The <tt>aint</tt> keyword has been replaced by <tt>isnt</tt>, which goes
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
together a little smoother with <tt>is</tt>.
Quoted strings are now allowed as identifiers within object literals: eg.
<tt>{"5+5": 10}</tt>.
moved the coffeescript extension over from .cs to .coffee -- let's leave C# in peace. Changed array comprehensions to always return their mapped result, even when unassigned
2009-12-25 17:18:05 -05:00
All assignment operators now use a colon: <tt>+:</tt>, <tt>-:</tt>,
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
<tt>*:</tt>, etc.
</p>
docs for 0.1.1
2009-12-24 15:02:28 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.2
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 24, 2009</small></span>
</b>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
Fixed a bug with calling <tt>super()</tt> through more than one level of
bumping to 0.1.2 to get the super()/extends fix out there
2009-12-24 20:05:55 -05:00
inheritance, with the re-addition of the <tt>extends</tt> keyword.
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
Added experimental <a href="http://narwhaljs.org/">Narwhal</a>
support (as a Tusk package), contributed by
bumping to 0.1.2 to get the super()/extends fix out there
2009-12-24 20:05:55 -05:00
<a href="http://tlrobinson.net/">Tom Robinson</a>, including
<b>bin/cs</b> as a CoffeeScript REPL and interpreter.
New <tt>--no-wrap</tt> option to suppress the safety function
wrapper.
</p>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
bumping to 0.1.2 to get the super()/extends fix out there
2009-12-24 20:05:55 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.1
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 24, 2009</small></span>
</b>
docs for 0.1.1
2009-12-24 15:02:28 -05:00
Added <tt>instanceof</tt> and <tt>typeof</tt> as operators.
</p>
bumping to 0.1.3 ... here we go
2009-12-25 03:16:56 -05:00
added some execution test
2009-12-24 03:12:07 -05:00
<p>
Adding an existential infix operator example.
2010-12-11 19:44:11 -05:00
<b class="header" style="margin-top: 20px;">0.1.0
CoffeeScript 0.9.6
2010-12-07 00:21:34 -05:00
<span class="timestamp"> &ndash; <small>Dec 24, 2009</small></span>
</b>
added some execution test
2009-12-24 03:12:07 -05:00
Initial CoffeeScript release.
</p>
documentation waypoint
2009-12-21 11:41:45 -05:00
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
</div>
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
<script type="text/coffeescript">
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
# Set up the compilation function, to run when you stop typing.
Bumping site.
2010-12-12 21:41:04 -05:00
compileSource = ->
regenerating large swathes of the docs
2010-08-03 00:06:34 -04:00
source = $('#repl_source').val()
Bumping site.
2010-12-12 21:41:04 -05:00
window.compiledJS = ''
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
try
Bumping site.
2010-12-12 21:41:04 -05:00
window.compiledJS = CoffeeScript.compile source, bare: on
$('#repl_results').text window.compiledJS
regenerating large swathes of the docs
2010-08-03 00:06:34 -04:00
$('#error').hide()
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
catch error
regenerating large swathes of the docs
2010-08-03 00:06:34 -04:00
$('#error').text(error.message).show()
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
# Listen for keypresses and recompile.
Bumping site.
2010-12-12 21:41:04 -05:00
$('#repl_source').keyup -> compileSource()
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
# Eval the compiled js.
Bumping site.
2010-12-12 21:41:04 -05:00
$('.minibutton.run').click ->
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
try
Bumping site.
2010-12-12 21:41:04 -05:00
eval window.compiledJS
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
catch error then alert error
Bumping site.
2010-12-12 21:41:04 -05:00
# Load the console with a string of CoffeeScript.
window.loadConsole = (coffee) ->
$('#repl_source').val coffee
compileSource()
fixing some site bugs.
2010-12-12 21:53:17 -05:00
$('.navigation.try').addClass('active')
false
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
# Helper to hide the menus.
Bumping site.
2010-12-12 21:41:04 -05:00
closeMenus = ->
fixing some site bugs.
2010-12-12 21:53:17 -05:00
$('.navigation.active').removeClass 'active'
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
# Bind navigation buttons to open the menus.
$('.navigation').click (e) ->
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
return if e.target.tagName.toLowerCase() is 'a'
Bumping site.
2010-12-12 21:41:04 -05:00
return false if $(e.target).closest('.repl_wrapper').length
fixing some site bugs.
2010-12-12 21:53:17 -05:00
if $(this).hasClass('active')
Bumping site.
2010-12-12 21:41:04 -05:00
closeMenus()
else
closeMenus()
fixing some site bugs.
2010-12-12 21:53:17 -05:00
$(this).addClass 'active'
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
false
fixing some site bugs.
2010-12-12 21:53:17 -05:00
$(document.body).click (e) ->
return false if $(e.target).hasClass('minibutton')
closeMenus()
fancy new fullscreen version of 'Try CoffeeScript'
2010-02-27 02:21:26 -05:00
adding webchat to the doc page
2010-04-10 13:42:39 -04:00
$('#open_webchat').click ->
$(this).replaceWith $('<iframe src="http://webchat.freenode.net/?channels=coffeescript" width="625" height="400"></iframe>')
Bumping site.
2010-12-12 21:41:04 -05:00
compileSource()
new live 'Try CoffeeScript'
2010-02-25 20:39:34 -05:00
implementing the inline javascript in the documentation page in text/coffeescript, switching from the closure compiler to the yui compressor for building the browser version -- the closure compiler had a bug for our input -- fixable by hand but not worth the tiny savings
2010-02-24 20:41:56 -05:00
</script>
making the docs a little less jumpy with more stable menus
2010-02-21 23:29:31 -05:00
removing CoffeeScript.activate() simply including the tag will do for text/coffeescript
2010-02-24 23:57:39 -05:00
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script src="extras/coffee-script.js"></script>
working 'Try CoffeeScript' in the docs
2010-02-13 16:23:03 -05:00
added full complement of bitwise operators
2009-12-19 22:55:58 -05:00
</body>
</html>
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