mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
Use actual _.template instead of custom one
This commit is contained in:
xixixao
parent
928d2d7f4a
commit
9e5ffaea69
4 changed files with 78 additions and 111 deletions
73
Cakefile
73
Cakefile
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@ -1,5 +1,6 @@
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fs = require 'fs'
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path = require 'path'
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_ = require 'underscore'
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CoffeeScript = require './lib/coffee-script'
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{spawn, exec} = require 'child_process'
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helpers = require './lib/coffee-script/helpers'
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@ -41,6 +42,29 @@ run = (args, cb) ->
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log = (message, color, explanation) ->
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console.log color + message + reset + ' ' + (explanation or '')
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codeFor = ->
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counter = 0
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hljs = require 'highlight.js'
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hljs.configure classPrefix: ''
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(file, executable = false, showLoad = true) ->
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counter++
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return unless fs.existsSync "documentation/js/#{file}.js"
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cs = fs.readFileSync "documentation/coffee/#{file}.coffee", 'utf-8'
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js = fs.readFileSync "documentation/js/#{file}.js", 'utf-8'
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js = js.replace /^\/\/ generated.*?\n/i, ''
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cshtml = "<pre><code>#{hljs.highlight('coffeescript', cs).value}</code></pre>"
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jshtml = "<pre><code>#{hljs.highlight('javascript', js).value}</code></pre>"
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append = if executable is yes then '' else "alert(#{executable});"
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if executable and executable != yes
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cs.replace /(\S)\s*\Z/m, "$1\n\nalert #{executable}"
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run = if executable is true then 'run' else "run: #{executable}"
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name = "example#{counter}"
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script = "<script>window.#{name} = #{JSON.stringify cs}</script>"
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load = if showLoad then "<div class='minibutton load' onclick='javascript: loadConsole(#{name});'>load</div>" else ''
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button = if executable then "<div class='minibutton ok' onclick='javascript: #{js};#{append}'>#{run}</div>" else ''
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"<div class='code'>#{cshtml}#{jshtml}#{script}#{load}#{button}<br class='clear' /></div>"
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option '-p', '--prefix [DIR]', 'set the installation prefix for `cake install`'
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task 'install', 'install CoffeeScript into /usr/local (or --prefix)', (options) ->
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@ -116,49 +140,18 @@ task 'build:browser', 'rebuild the merged script for inclusion in the browser',
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invoke 'test:browser'
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task 'doc:site', 'build the documentation for the website', ->
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source = 'documentation/index.html.coffee'
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task 'doc:site', 'watch and continually rebuild the documentation for the website', ->
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source = 'documentation/index.html.js'
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exec 'bin/coffee -bc -o documentation/js documentation/coffee/*.coffee'
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# _.template for CoffeeScript
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template = (text, compile) ->
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escapes =
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"'": "'"
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'\\': '\\'
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'\r': 'r'
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'\n': 'n'
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'\t': 't'
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'\u2028': 'u2028'
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'\u2029': 'u2029'
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escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g
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matcher = /<%=([\s\S]+?)%>|<%([\s\S]+?)%>|$/g
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# Compile the template source, escaping string literals appropriately.
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index = 0
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source = ""
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text.replace matcher, (match, interpolate, evaluate, offset) ->
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source += text[index...offset].replace escaper, (match) ->
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"\\#{escapes[match]}"
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# strip newline and semi-colon from interpolated expression
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source += "'+\n#{(compile interpolate)[0...-2]}+\n'" if interpolate
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source += "';\n#{compile evaluate}\n__p+='" if evaluate
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index = offset + match.length
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match
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source = "with(obj){\n__p+='#{source}';\n}\n"
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source = "var __p='',__j=Array.prototype.join,
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print=function(){__p+=__j.call(arguments,'');};\n
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#{source}return __p;\n"
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try
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render = new Function 'obj', source
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catch e
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e.source = source
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throw e
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render require: require
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rendered = template fs.readFileSync(source, 'utf-8'), (code) ->
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CoffeeScript.compile code, bare: true
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do renderIndex = ->
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codeSnippetCounter = 0
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rendered = _.template fs.readFileSync(source, 'utf-8'), codeFor: codeFor()
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fs.writeFileSync 'index.html', rendered
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log "compiled", green, "#{source}"
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fs.watchFile source, internal: 200, renderIndex
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log "watching..." , green
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task 'doc:source', 'rebuild the internal documentation', ->
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@ -1,29 +1,3 @@
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<%
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path = require 'path'
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fs = require 'fs'
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hljs = require 'highlight.js'
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hljs.configure classPrefix: ''
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counter = 0
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code_for = (file, executable = false, showLoad = true) ->
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counter++
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return unless fs.existsSync "documentation/js/#{file}.js"
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cs = fs.readFileSync "documentation/coffee/#{file}.coffee", 'utf-8'
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js = fs.readFileSync "documentation/js/#{file}.js", 'utf-8'
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js = js.replace /^\/\/ generated.*?\n/i, ''
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cshtml = "<pre><code>#{hljs.highlight('coffeescript', cs).value}</code></pre>"
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jshtml = "<pre><code>#{hljs.highlight('javascript', js).value}</code></pre>"
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append = if executable is yes then '' else "alert(#{executable});"
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if executable and executable != yes
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cs.replace /(\S)\s*\Z/m, "$1\n\nalert #{executable}"
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run = if executable is true then 'run' else "run: #{executable}"
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name = "example#{counter}"
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script = "<script>window.#{name} = #{JSON.stringify cs}</script>"
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load = if showLoad then "<div class='minibutton load' onclick='javascript: loadConsole(#{name});'>load</div>" else ''
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button = if executable then "<div class='minibutton ok' onclick='javascript: #{js};#{append}'>#{run}</div>" else ''
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"<div class='code'>#{cshtml}#{jshtml}#{script}#{load}#{button}<br class='clear' /></div>"
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%>
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<!DOCTYPE html>
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<html>
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<head>
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@ -151,7 +125,7 @@ sudo npm install -g coffee-script</pre>
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<p><i>CoffeeScript on the left, compiled JavaScript output on the right.</i></p>
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<%= code_for 'overview', 'cubes', false %>
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<%= codeFor('overview', 'cubes', false) %>
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<h2>
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<span id="installation" class="bookmark"></span>
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@ -436,12 +410,12 @@ Expressions
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an arrow, and the function body. The empty function looks like this:
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<tt>-></tt>
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</p>
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<%= code_for 'functions', 'cube(5)' %>
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<%= codeFor('functions', 'cube(5)') %>
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<p>
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Functions may also have default values for arguments, which will be used
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if the incoming argument is missing (<tt>null</tt> or <tt>undefined</tt>).
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</p>
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<%= code_for 'default_args', 'fill("cup")' %>
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<%= codeFor('default_args', 'fill("cup")') %>
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<p>
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<span id="objects_and_arrays" class="bookmark"></span>
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@ -451,14 +425,14 @@ Expressions
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the commas are optional. Objects may be created using indentation instead
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of explicit braces, similar to <a href="http://yaml.org">YAML</a>.
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</p>
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<%= code_for 'objects_and_arrays', 'song.join(" ... ")' %>
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<%= codeFor('objects_and_arrays', 'song.join(" ... ")') %>
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<p>
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In JavaScript, you can't use reserved words, like <tt>class</tt>, as properties
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of an object, without quoting them as strings. CoffeeScript notices reserved words
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used as keys in objects and quotes them for you, so you don't have to worry
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about it (say, when using jQuery).
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</p>
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<%= code_for 'objects_reserved' %>
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<%= codeFor('objects_reserved') %>
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<p>
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<span id="lexical-scope" class="bookmark"></span>
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@ -467,7 +441,7 @@ Expressions
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are properly declared within lexical scope — you never need to write
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<tt>var</tt> yourself.
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</p>
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<%= code_for 'scope', 'inner' %>
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<%= codeFor('scope', 'inner') %>
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<p>
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Notice how all of the variable declarations have been pushed up to
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the top of the closest scope, the first time they appear.
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@ -512,7 +486,7 @@ Expressions
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is no explicit ternary statement in CoffeeScript — you simply use
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a regular <b>if</b> statement on a single line.
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</p>
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<%= code_for 'conditionals' %>
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<%= codeFor('conditionals') %>
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<p>
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<span id="splats" class="bookmark"></span>
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@ -522,7 +496,7 @@ Expressions
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splats <tt>...</tt>, both for function definition as well as invocation,
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making variable numbers of arguments a little bit more palatable.
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</p>
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<%= code_for 'splats', true %>
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<%= codeFor('splats', true) %>
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<p>
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<span id="loops" class="bookmark"></span>
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@ -533,7 +507,7 @@ Expressions
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Unlike for loops, array comprehensions are expressions, and can be returned
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and assigned.
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</p>
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<%= code_for 'array_comprehensions' %>
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<%= codeFor('array_comprehensions') %>
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<p>
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Comprehensions should be able to handle most places where you otherwise
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would use a loop, <b>each</b>/<b>forEach</b>, <b>map</b>, or <b>select</b>/<b>filter</b>, for example:
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@ -542,7 +516,7 @@ Expressions
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in fixed-size increments, you can use a range to specify the start and
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end of your comprehension.
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</p>
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<%= code_for 'range_comprehensions', 'countdown' %>
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<%= codeFor('range_comprehensions', 'countdown') %>
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<p>
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Note how because we are assigning the value of the comprehensions to a
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variable in the example above, CoffeeScript is collecting the result of
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@ -562,7 +536,7 @@ Expressions
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an object. Use <tt>of</tt> to signal comprehension over the properties of
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an object instead of the values in an array.
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</p>
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<%= code_for 'object_comprehensions', 'ages.join(", ")' %>
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<%= codeFor('object_comprehensions', 'ages.join(", ")') %>
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<p>
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If you would like to iterate over just the keys that are defined on the
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object itself, by adding a <tt>hasOwnProperty</tt>
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@ -575,7 +549,7 @@ Expressions
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as an expression, returning an array containing the result of each iteration
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through the loop.
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</p>
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<%= code_for 'while', 'lyrics.join("\n")' %>
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<%= codeFor('while', 'lyrics.join("\n")') %>
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<p>
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For readability, the <b>until</b> keyword is equivalent to <tt>while not</tt>,
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and the <b>loop</b> keyword is equivalent to <tt>while true</tt>.
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@ -587,7 +561,7 @@ Expressions
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provides the <tt>do</tt> keyword, which immediately invokes a passed function,
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forwarding any arguments.
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</p>
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<%= code_for 'do' %>
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<%= codeFor('do') %>
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<p>
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<span id="slices" class="bookmark"></span>
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@ -598,12 +572,12 @@ Expressions
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Slices indices have useful defaults. An omitted first index defaults to
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zero and an omitted second index defaults to the size of the array.
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</p>
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<%= code_for 'slices', 'middle' %>
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<%= codeFor('slices', 'middle') %>
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<p>
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The same syntax can be used with assignment to replace a segment of an array
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with new values, splicing it.
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</p>
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<%= code_for 'splices', 'numbers' %>
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<%= codeFor('splices', 'numbers') %>
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<p>
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Note that JavaScript strings are immutable, and can't be spliced.
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</p>
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@ -617,7 +591,7 @@ Expressions
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pushed down into each possible branch of execution in the function
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below.
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</p>
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<%= code_for 'expressions', 'eldest' %>
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<%= codeFor('expressions', 'eldest') %>
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<p>
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Even though functions will always return their final value, it's both possible
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and encouraged to return early from a function body writing out the explicit
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@ -627,19 +601,19 @@ Expressions
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Because variable declarations occur at the top of scope, assignment can
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be used within expressions, even for variables that haven't been seen before:
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</p>
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<%= code_for 'expressions_assignment', 'six' %>
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<%= codeFor('expressions_assignment', 'six') %>
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<p>
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Things that would otherwise be statements in JavaScript, when used
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as part of an expression in CoffeeScript, are converted into expressions
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by wrapping them in a closure. This lets you do useful things, like assign
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the result of a comprehension to a variable:
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</p>
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<%= code_for 'expressions_comprehension', 'globals' %>
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<%= codeFor('expressions_comprehension', 'globals') %>
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<p>
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As well as silly things, like passing a <b>try/catch</b> statement directly
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into a function call:
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</p>
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<%= code_for 'expressions_try', true %>
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<%= codeFor('expressions_try', true) %>
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<p>
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There are a handful of statements in JavaScript that can't be meaningfully
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converted into expressions, namely <tt>break</tt>, <tt>continue</tt>,
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@ -707,7 +681,7 @@ Expressions
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<tr><td><tt>a %% b</tt></td><td><tt>(a % b + b) % b</tt></td></tr>
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</table>
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<%= code_for 'aliases' %>
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<%= codeFor('aliases') %>
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<p>
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<b class="header">The Existential Operator</b>
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@ -721,7 +695,7 @@ Expressions
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It can also be used for safer conditional assignment than <tt>||=</tt>
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provides, for cases where you may be handling numbers or strings.
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</p>
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<%= code_for 'existence', 'footprints' %>
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<%= codeFor('existence', 'footprints') %>
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<p>
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The accessor variant of the existential operator <tt>?.</tt> can be used to soak
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up null references in a chain of properties. Use it instead
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@ -730,7 +704,7 @@ Expressions
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result, if the chain is broken, <b>undefined</b> is returned instead of
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the <b>TypeError</b> that would be raised otherwise.
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</p>
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<%= code_for 'soaks' %>
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<%= codeFor('soaks') %>
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<p>
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Soaking up nulls is similar to Ruby's
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<a href="http://andand.rubyforge.org/">andand gem</a>, and to the
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@ -763,7 +737,7 @@ Expressions
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Constructor functions are named, to better support helpful stack traces.
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In the first class in the example below, <tt>this.constructor.name is "Animal"</tt>.
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</p>
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<%= code_for 'classes', true %>
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<%= codeFor('classes', true) %>
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<p>
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If structuring your prototypes classically isn't your cup of tea, CoffeeScript
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provides a couple of lower-level conveniences. The <tt>extends</tt> operator
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@ -772,7 +746,7 @@ Expressions
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quick access to an object's prototype; and <tt>super()</tt>
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is converted into a call against the immediate ancestor's method of the same name.
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</p>
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<%= code_for 'prototypes', '"one_two".dasherize()' %>
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<%= codeFor('prototypes', '"one_two".dasherize()') %>
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<p>
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Finally, class definitions are blocks of executable code, which make for interesting
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metaprogramming possibilities. Because in the context of a class definition,
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@ -792,30 +766,30 @@ Expressions
|
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on the right to the variables on the left. In the simplest case, it can be
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used for parallel assignment:
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</p>
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<%= code_for 'parallel_assignment', 'theBait' %>
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<%= codeFor('parallel_assignment', 'theBait') %>
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<p>
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But it's also helpful for dealing with functions that return multiple
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values.
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</p>
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<%= code_for 'multiple_return_values', 'forecast' %>
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<%= codeFor('multiple_return_values', 'forecast') %>
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<p>
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Destructuring assignment can be used with any depth of array and object nesting,
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to help pull out deeply nested properties.
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</p>
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<%= code_for 'object_extraction', '"name + "-" + street"' %>
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<%= codeFor('object_extraction', '"name + "-" + street"') %>
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<p>
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Destructuring assignment can even be combined with splats.
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</p>
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<%= code_for 'patterns_and_splats', 'contents.join("")' %>
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<%= codeFor('patterns_and_splats', 'contents.join("")') %>
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<p>
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Expansion can be used to retrieve elements from the end of an array without having to assign the rest of its values. It works in function parameter lists as well.
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</p>
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<%= code_for 'expansion', '"first + " " + last"' %>
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<%= codeFor('expansion', '"first + " " + last"') %>
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<p>
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Destructuring assignment is also useful when combined with class constructors
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to assign properties to your instance from an options object passed to the constructor.
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</p>
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<%= code_for 'constructor_destructuring', 'tim.age' %>
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<%= codeFor('constructor_destructuring', 'tim.age') %>
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<p>
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<span id="fat-arrow" class="bookmark"></span>
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|
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@ -835,7 +809,7 @@ Expressions
|
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to use with <tt>bind</tt>. Functions created with the fat arrow are able to access
|
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properties of the <tt>this</tt> where they're defined.
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</p>
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<%= code_for 'fat_arrow' %>
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<%= codeFor('fat_arrow') %>
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<p>
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If we had used <tt>-></tt> in the callback above, <tt>@customer</tt> would
|
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have referred to the undefined "customer" property of the DOM element,
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|
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@ -854,7 +828,7 @@ Expressions
|
|||
snippets of JavaScript within your CoffeeScript, you can
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use backticks to pass it straight through.
|
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</p>
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<%= code_for 'embedded', 'hi()' %>
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<%= codeFor('embedded', 'hi()') %>
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|
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<p>
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<span id="switch" class="bookmark"></span>
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|
|
@ -871,12 +845,12 @@ Expressions
|
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values for each <b>when</b> clause. If any of the values match, the clause
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runs.
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</p>
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<%= code_for 'switch' %>
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<%= codeFor('switch') %>
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<p>
|
||||
Switch statements can also be used without a control expression, turning them in to a cleaner alternative to if/else chains.
|
||||
</p>
|
||||
<%= code_for 'switch_with_no_expression' %>
|
||||
<%= codeFor('switch_with_no_expression') %>
|
||||
|
||||
<p>
|
||||
<span id="try" class="bookmark"></span>
|
||||
|
|
@ -884,7 +858,7 @@ Expressions
|
|||
Try/catch statements are just about the same as JavaScript (although
|
||||
they work as expressions).
|
||||
</p>
|
||||
<%= code_for 'try' %>
|
||||
<%= codeFor('try') %>
|
||||
|
||||
<p>
|
||||
<span id="comparisons" class="bookmark"></span>
|
||||
|
|
@ -894,7 +868,7 @@ Expressions
|
|||
from Python — making it easy to test if a value falls within a
|
||||
certain range.
|
||||
</p>
|
||||
<%= code_for 'comparisons', 'healthy' %>
|
||||
<%= codeFor('comparisons', 'healthy') %>
|
||||
|
||||
<p>
|
||||
<span id="strings" class="bookmark"></span>
|
||||
|
|
@ -903,18 +877,18 @@ Expressions
|
|||
strings allow for interpolated values, using <tt>#{ ... }</tt>,
|
||||
and single-quoted strings are literal.
|
||||
</p>
|
||||
<%= code_for 'interpolation', 'sentence' %>
|
||||
<%= codeFor('interpolation', 'sentence') %>
|
||||
<p>
|
||||
Multiline strings are allowed in CoffeeScript. Lines are joined by a single space unless they end with a backslash. Indentation is ignored.
|
||||
</p>
|
||||
<%= code_for 'strings', 'mobyDick' %>
|
||||
<%= codeFor('strings', 'mobyDick') %>
|
||||
<p>
|
||||
Block strings 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 block is maintained throughout, so
|
||||
you can keep it all aligned with the body of your code.
|
||||
</p>
|
||||
<%= code_for 'heredocs', 'html' %>
|
||||
<%= codeFor('heredocs', 'html') %>
|
||||
<p>
|
||||
Double-quoted block strings, like other double-quoted strings, allow interpolation.
|
||||
</p>
|
||||
|
|
@ -924,7 +898,7 @@ Expressions
|
|||
the top of a file. Block comments, which mirror the syntax for block strings,
|
||||
are preserved in the generated code.
|
||||
</p>
|
||||
<%= code_for 'block_comment' %>
|
||||
<%= codeFor('block_comment') %>
|
||||
|
||||
<p>
|
||||
<span id="regexes" class="bookmark"></span>
|
||||
|
|
@ -935,7 +909,7 @@ Expressions
|
|||
block regexes are delimited by <tt>///</tt> and go a long way towards making complex
|
||||
regular expressions readable. To quote from the CoffeeScript source:
|
||||
</p>
|
||||
<%= code_for 'heregexes' %>
|
||||
<%= codeFor('heregexes') %>
|
||||
|
||||
|
||||
<h2>
|
||||
|
|
@ -961,7 +935,7 @@ Expressions
|
|||
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>
|
||||
<%= code_for 'cake_tasks' %>
|
||||
<%= codeFor('cake_tasks') %>
|
||||
<p>
|
||||
If you need to invoke one task before another — for example, running
|
||||
<tt>build</tt> before <tt>test</tt>, you can use the <tt>invoke</tt> function:
|
||||
|
|
@ -1234,7 +1208,7 @@ Expressions
|
|||
Leading <tt>.</tt> now closes all open calls, allowing for simpler chaining syntax.
|
||||
</li>
|
||||
</ul>
|
||||
<%= code_for 'chaining' %>
|
||||
<%= codeFor('chaining') %>
|
||||
<ul>
|
||||
<li>
|
||||
Added <tt>**</tt>, <tt>//</tt> and <tt>%%</tt> operators and <tt>...</tt> expansion in paramater lists and destructuring expressions.
|
||||
|
|
@ -1,4 +1,3 @@
|
|||
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
|
|
|
|||
|
|
@ -33,7 +33,8 @@
|
|||
"devDependencies": {
|
||||
"uglify-js": "~2.2",
|
||||
"jison": ">=0.2.0",
|
||||
"highlight.js": "~8.0.0"
|
||||
"highlight.js": "~8.0.0",
|
||||
"underscore": "~1.5.2"
|
||||
},
|
||||
"dependencies": {
|
||||
"mkdirp": "~0.3.5"
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue