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more work on site, down to arrays and objects.

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Jeremy Ashkenas 2010-12-23 14:26:10 -08:00
parent 2d54a45a80
commit 83a7985a97
4 changed files with 46 additions and 48 deletions
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2
documentation/coffee/objects_and_arrays.coffee
View file

@ -2,7 +2,7 @@ song = ["do", "re", "mi", "fa", "so"]
singers = {Jagger: "Rock", Elvis: "Roll"}
matrix = [
bitlist = [
1, 0, 1
0, 0, 1
1, 1, 0

39
documentation/index.html.erb
View file

@ -360,47 +360,46 @@ Expressions
console by pressing the <b>load</b> button on the left.
</i>
<p>
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
<tt>{ }</tt> to delimit blocks of code (like <a href="#functions">functions</a>,
First, the basics: CoffeeScript uses significant whitespace to delimit blocks of code.
You don't need to use semicolons <tt>;</tt> to terminate expressions,
ending the line will do just as well, (although semicolons can still
be used to fit multiple expressions onto a single line.)
Instead of using curly braces
<tt>{ }</tt> to surround blocks of code in <a href="#functions">functions</a>,
<a href="#conditionals">if-statements</a>,
<a href="#switch">switch</a>, and <a href="#try">try/catch</a>),
<a href="#switch">switch</a>, and <a href="#try">try/catch</a>,
use indentation.
</p>
<p>
You don't need to use parentheses to invoke a function if you're passing
arguments:<br /><tt>print "coffee"</tt>. The implicit call wraps forward
to the end of the line or block expression.
</p>
<p>
Within object literals, indentation can be used to create nested objects.
arguments. The implicit call wraps forward to the end of the line or block expression.<br />
<tt>console.log sys.inspect object</tt> &rarr; <tt>console.log(sys.inspect(object));</tt>
</p>
<p>
<span id="literals" class="bookmark"></span>
<b class="header">Functions</b>
Functions are defined by a list of parameters, an arrow, and the
function body. The empty function looks like this: <tt>-></tt>
Functions are defined by an optional list of parameters in parentheses,
an arrow, and the function body. The empty function looks like this:
<tt>-></tt>
</p>
<%= code_for('functions', 'cube(5)') %>
<p>
Functions may also have default values for arguments.
Functions may also have default values for arguments. Override the default
value by passing a non-null argument.
</p>
<%= code_for('default_args', 'fill("cup")') %>
<p>
<span id="objects_and_arrays" class="bookmark"></span>
<b class="header">Objects and Arrays</b>
Object and Array literals look very similar to their JavaScript cousins.
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.
The CoffeeScript literals for objects and arrays look very similar to
their JavaScript cousins. 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 <a href="http://yaml.org">YAML</a>.
</p>
<%= code_for('objects_and_arrays', 'song.join(",")') %>
<%= code_for('objects_and_arrays', 'song.join(" ... ")') %>
<p>
In JavaScript, you can't use reserved words, like <tt>class</tt>, as properties
of an object, without quoting them as strings. CoffeeScript notices reserved words

4
documentation/js/objects_and_arrays.js
View file

@ -1,10 +1,10 @@
var kids, matrix, singers, song;
var bitlist, kids, singers, song;
song = ["do", "re", "mi", "fa", "so"];
singers = {
Jagger: "Rock",
Elvis: "Roll"
};
matrix = [1, 0, 1, 0, 0, 1, 1, 1, 0];
bitlist = [1, 0, 1, 0, 0, 1, 1, 1, 0];
kids = {
brother: {
name: "Max",

49
index.html
View file

@ -435,31 +435,29 @@ Expressions
console by pressing the <b>load</b> button on the left.
</i>
<p>
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
<tt>{ }</tt> to delimit blocks of code (like <a href="#functions">functions</a>,
First, the basics: CoffeeScript uses significant whitespace to delimit blocks of code.
You don't need to use semicolons <tt>;</tt> to terminate expressions,
ending the line will do just as well, (although semicolons can still
be used to fit multiple expressions onto a single line.)
Instead of using curly braces
<tt>{ }</tt> to surround blocks of code in <a href="#functions">functions</a>,
<a href="#conditionals">if-statements</a>,
<a href="#switch">switch</a>, and <a href="#try">try/catch</a>),
<a href="#switch">switch</a>, and <a href="#try">try/catch</a>,
use indentation.
</p>
<p>
You don't need to use parentheses to invoke a function if you're passing
arguments:<br /><tt>print "coffee"</tt>. The implicit call wraps forward
to the end of the line or block expression.
</p>
<p>
Within object literals, indentation can be used to create nested objects.
arguments. The implicit call wraps forward to the end of the line or block expression.<br />
<tt>console.log sys.inspect object</tt> &rarr; <tt>console.log(sys.inspect(object));</tt>
</p>
<p>
<span id="literals" class="bookmark"></span>
<b class="header">Functions</b>
Functions are defined by a list of parameters, an arrow, and the
function body. The empty function looks like this: <tt>-></tt>
Functions are defined by an optional list of parameters in parentheses,
an arrow, and the function body. The empty function looks like this:
<tt>-></tt>
</p>
<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
@ -478,7 +476,8 @@ cube = function(x) {
return square(x) * x;
};;alert(cube(5));'>run: cube(5)</div><br class='clear' /></div>
<p>
Functions may also have default values for arguments.
Functions may also have default values for arguments. Override the default
value by passing a non-null argument.
</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>
@ -506,16 +505,16 @@ fill = function(container, liquid) {
<p>
<span id="objects_and_arrays" class="bookmark"></span>
<b class="header">Objects and Arrays</b>
Object and Array literals look very similar to their JavaScript cousins.
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.
The CoffeeScript literals for objects and arrays look very similar to
their JavaScript cousins. 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 <a href="http://yaml.org">YAML</a>.
</p>
<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>]
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>}
matrix <span class="Keyword">=</span> [
bitlist <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>
@ -530,13 +529,13 @@ kids <span class="Keyword">=</span>
age: <span class="Number">9</span>
</pre><pre class="idle"><span class="Storage">var</span> kids, matrix, singers, song;
</pre><pre class="idle"><span class="Storage">var</span> bitlist, kids, singers, song;
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>];
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>
};
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>];
bitlist <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>];
kids <span class="Keyword">=</span> {
brother: {
name: <span class="String"><span class="String">&quot;</span>Max<span class="String">&quot;</span></span>,
@ -547,13 +546,13 @@ kids <span class="Keyword">=</span> {
age: <span class="Number">9</span>
}
};
</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\nalert song.join(\",\")"</script><div class='minibutton load' onclick='javascript: loadConsole(example4);'>load</div><div class='minibutton ok' onclick='javascript: var kids, matrix, singers, song;
</pre><script>window.example4 = "song = [\"do\", \"re\", \"mi\", \"fa\", \"so\"]\n\nsingers = {Jagger: \"Rock\", Elvis: \"Roll\"}\n\nbitlist = [\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\nalert song.join(\" ... \")"</script><div class='minibutton load' onclick='javascript: loadConsole(example4);'>load</div><div class='minibutton ok' onclick='javascript: var bitlist, kids, singers, song;
song = ["do", "re", "mi", "fa", "so"];
singers = {
Jagger: "Rock",
Elvis: "Roll"
};
matrix = [1, 0, 1, 0, 0, 1, 1, 1, 0];
bitlist = [1, 0, 1, 0, 0, 1, 1, 1, 0];
kids = {
brother: {
name: "Max",
@ -563,7 +562,7 @@ kids = {
name: "Ida",
age: 9
}
};;alert(song.join(","));'>run: song.join(",")</div><br class='clear' /></div>
};;alert(song.join(" ... "));'>run: song.join(" ... ")</div><br class='clear' /></div>
<p>
In JavaScript, you can't use reserved words, like <tt>class</tt>, as properties
of an object, without quoting them as strings. CoffeeScript notices reserved words