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Underscore.js 1.2.4

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commit 4946c549b2f236245aa619109b44308a6641ada5 1 parent f79c5ab
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2  LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2011 Jeremy Ashkenas, DocumentCloud
+Copyright (c) 2009-2012 Jeremy Ashkenas, DocumentCloud
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
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48 docs/underscore.html
@@ -1,12 +1,11 @@
-<!DOCTYPE html> <html> <head> <title>underscore.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> underscore.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">&#182;</a> </div> <pre><code>Underscore.js 1.2.3
-(c) 2009-2011 Jeremy Ashkenas, DocumentCloud Inc.
+<!DOCTYPE html> <html> <head> <title>underscore.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> underscore.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">&#182;</a> </div> <pre><code>Underscore.js 1.2.4
+(c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
Underscore is freely distributable under the MIT license.
Portions of Underscore are inspired or borrowed from Prototype,
Oliver Steele's Functional, and John Resig's Micro-Templating.
For all details and documentation:
http://documentcloud.github.com/underscore
</code></pre> </td> <td class="code"> <div class="highlight"><pre><span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">&#182;</a> </div> <h2>Baseline setup</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">&#182;</a> </div> <p>Establish the root object, <code>window</code> in the browser, or <code>global</code> on the server.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">root</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">&#182;</a> </div> <p>Save the previous value of the <code>_</code> variable.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">previousUnderscore</span> <span class="o">=</span> <span class="nx">root</span><span class="p">.</span><span class="nx">_</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">&#182;</a> </div> <p>Establish the object that gets returned to break out of a loop iteration.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">breaker</span> <span class="o">=</span> <span class="p">{};</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">&#182;</a> </div> <p>Save bytes in the minified (but not gzipped) version:</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">ArrayProto</span> <span class="o">=</span> <span class="nb">Array</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">ObjProto</span> <span class="o">=</span> <span class="nb">Object</span><span class="p">.</span><span class="nx">prototype</span><span class="p">,</span> <span class="nx">FuncProto</span> <span class="o">=</span> <span class="nb">Function</span><span class="p">.</span><span class="nx">prototype</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">&#182;</a> </div> <p>Create quick reference variables for speed access to core prototypes.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">slice</span> <span class="o">=</span> <span class="nx">ArrayProto</span><span class="p">.</span><span class="nx">slice</span><span class="p">,</span>
- <span class="nx">concat</span> <span class="o">=</span> <span class="nx">ArrayProto</span><span class="p">.</span><span class="nx">concat</span><span class="p">,</span>
<span class="nx">unshift</span> <span class="o">=</span> <span class="nx">ArrayProto</span><span class="p">.</span><span class="nx">unshift</span><span class="p">,</span>
<span class="nx">toString</span> <span class="o">=</span> <span class="nx">ObjProto</span><span class="p">.</span><span class="nx">toString</span><span class="p">,</span>
<span class="nx">hasOwnProperty</span> <span class="o">=</span> <span class="nx">ObjProto</span><span class="p">.</span><span class="nx">hasOwnProperty</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-8">&#182;</a> </div> <p>All <strong>ECMAScript 5</strong> native function implementations that we hope to use
@@ -33,7 +32,7 @@
<span class="k">return</span> <span class="nx">_</span><span class="p">;</span>
<span class="p">});</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-12"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-12">&#182;</a> </div> <p>Exported as a string, for Closure Compiler "advanced" mode.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">root</span><span class="p">[</span><span class="s1">&#39;_&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nx">_</span><span class="p">;</span>
- <span class="p">}</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-13">&#182;</a> </div> <p>Current version.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">VERSION</span> <span class="o">=</span> <span class="s1">&#39;1.2.3&#39;</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-14"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-14">&#182;</a> </div> <h2>Collection Functions</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-15">&#182;</a> </div> <p>The cornerstone, an <code>each</code> implementation, aka <code>forEach</code>.
+ <span class="p">}</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-13">&#182;</a> </div> <p>Current version.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">VERSION</span> <span class="o">=</span> <span class="s1">&#39;1.2.4&#39;</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-14"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-14">&#182;</a> </div> <h2>Collection Functions</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-15">&#182;</a> </div> <p>The cornerstone, an <code>each</code> implementation, aka <code>forEach</code>.
Handles objects with the built-in <code>forEach</code>, arrays, and raw objects.
Delegates to <strong>ECMAScript 5</strong>'s native <code>forEach</code> if available.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">each</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">each</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">forEach</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">iterator</span><span class="p">,</span> <span class="nx">context</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">obj</span> <span class="o">==</span> <span class="kc">null</span><span class="p">)</span> <span class="k">return</span><span class="p">;</span>
@@ -58,6 +57,7 @@
<span class="nx">each</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">value</span><span class="p">,</span> <span class="nx">index</span><span class="p">,</span> <span class="nx">list</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">results</span><span class="p">[</span><span class="nx">results</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span> <span class="o">=</span> <span class="nx">iterator</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">context</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">index</span><span class="p">,</span> <span class="nx">list</span><span class="p">);</span>
<span class="p">});</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nx">obj</span><span class="p">.</span><span class="nx">length</span> <span class="o">===</span> <span class="o">+</span><span class="nx">obj</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="nx">results</span><span class="p">.</span><span class="nx">length</span> <span class="o">=</span> <span class="nx">obj</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
<span class="k">return</span> <span class="nx">results</span><span class="p">;</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-17">&#182;</a> </div> <p><strong>Reduce</strong> builds up a single result from a list of values, aka <code>inject</code>,
or <code>foldl</code>. Delegates to <strong>ECMAScript 5</strong>'s native <code>reduce</code> if available.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">reduce</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">foldl</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">inject</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">iterator</span><span class="p">,</span> <span class="nx">memo</span><span class="p">,</span> <span class="nx">context</span><span class="p">)</span> <span class="p">{</span>
@@ -147,7 +147,7 @@
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-25"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-25">&#182;</a> </div> <p>Invoke a method (with arguments) on every item in a collection.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">invoke</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">method</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">args</span> <span class="o">=</span> <span class="nx">slice</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">arguments</span><span class="p">,</span> <span class="mi">2</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">map</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">value</span><span class="p">)</span> <span class="p">{</span>
- <span class="k">return</span> <span class="p">(</span><span class="nx">method</span><span class="p">.</span><span class="nx">call</span> <span class="o">?</span> <span class="nx">method</span> <span class="o">||</span> <span class="nx">value</span> <span class="o">:</span> <span class="nx">value</span><span class="p">[</span><span class="nx">method</span><span class="p">]).</span><span class="nx">apply</span><span class="p">(</span><span class="nx">value</span><span class="p">,</span> <span class="nx">args</span><span class="p">);</span>
+ <span class="k">return</span> <span class="p">(</span><span class="nx">_</span><span class="p">.</span><span class="nx">isFunction</span><span class="p">(</span><span class="nx">method</span><span class="p">)</span> <span class="o">?</span> <span class="nx">method</span> <span class="o">||</span> <span class="nx">value</span> <span class="o">:</span> <span class="nx">value</span><span class="p">[</span><span class="nx">method</span><span class="p">]).</span><span class="nx">apply</span><span class="p">(</span><span class="nx">value</span><span class="p">,</span> <span class="nx">args</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-26"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-26">&#182;</a> </div> <p>Convenience version of a common use case of <code>map</code>: fetching a property.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">pluck</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">key</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">_</span><span class="p">.</span><span class="nx">map</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">value</span><span class="p">){</span> <span class="k">return</span> <span class="nx">value</span><span class="p">[</span><span class="nx">key</span><span class="p">];</span> <span class="p">});</span>
@@ -404,7 +404,7 @@
allowing you to adjust arguments, run code before and after, and
conditionally execute the original function.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">wrap</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">func</span><span class="p">,</span> <span class="nx">wrapper</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
- <span class="kd">var</span> <span class="nx">args</span> <span class="o">=</span> <span class="nx">concat</span><span class="p">.</span><span class="nx">apply</span><span class="p">([</span><span class="nx">func</span><span class="p">],</span> <span class="nx">arguments</span><span class="p">);</span>
+ <span class="kd">var</span> <span class="nx">args</span> <span class="o">=</span> <span class="p">[</span><span class="nx">func</span><span class="p">].</span><span class="nx">concat</span><span class="p">(</span><span class="nx">slice</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">arguments</span><span class="p">,</span> <span class="mi">0</span><span class="p">));</span>
<span class="k">return</span> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">args</span><span class="p">);</span>
<span class="p">};</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-62"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-62">&#182;</a> </div> <p>Returns a function that is the composition of a list of functions, each
@@ -561,7 +561,9 @@
<span class="nx">evaluate</span> <span class="o">:</span> <span class="sr">/&lt;%([\s\S]+?)%&gt;/g</span><span class="p">,</span>
<span class="nx">interpolate</span> <span class="o">:</span> <span class="sr">/&lt;%=([\s\S]+?)%&gt;/g</span><span class="p">,</span>
<span class="nx">escape</span> <span class="o">:</span> <span class="sr">/&lt;%-([\s\S]+?)%&gt;/g</span>
- <span class="p">};</span></pre></div> </td> </tr> <tr id="section-120"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-120">&#182;</a> </div> <p>JavaScript micro-templating, similar to John Resig's implementation.
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-120"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-120">&#182;</a> </div> <p>When customizing <code>templateSettings</code>, if you don't want to define an
+interpolation, evaluation or escaping regex, we need one that is
+guaranteed not to match.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">noMatch</span> <span class="o">=</span> <span class="sr">/.^/</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-121"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-121">&#182;</a> </div> <p>JavaScript micro-templating, similar to John Resig's implementation.
Underscore templating handles arbitrary delimiters, preserves whitespace,
and correctly escapes quotes within interpolated code.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">template</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">c</span> <span class="o">=</span> <span class="nx">_</span><span class="p">.</span><span class="nx">templateSettings</span><span class="p">;</span>
@@ -569,15 +571,16 @@
<span class="s1">&#39;with(obj||{}){__p.push(\&#39;&#39;</span> <span class="o">+</span>
<span class="nx">str</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\\/g</span><span class="p">,</span> <span class="s1">&#39;\\\\&#39;</span><span class="p">)</span>
<span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&#39;/g</span><span class="p">,</span> <span class="s2">&quot;\\&#39;&quot;</span><span class="p">)</span>
- <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">escape</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">escape</span> <span class="o">||</span> <span class="nx">noMatch</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="s2">&quot;&#39;,_.escape(&quot;</span> <span class="o">+</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\\&#39;/g</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;),&#39;&quot;</span><span class="p">;</span>
<span class="p">})</span>
- <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">interpolate</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">interpolate</span> <span class="o">||</span> <span class="nx">noMatch</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="s2">&quot;&#39;,&quot;</span> <span class="o">+</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\\&#39;/g</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;,&#39;&quot;</span><span class="p">;</span>
<span class="p">})</span>
- <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">evaluate</span> <span class="o">||</span> <span class="kc">null</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">c</span><span class="p">.</span><span class="nx">evaluate</span> <span class="o">||</span> <span class="nx">noMatch</span><span class="p">,</span> <span class="kd">function</span><span class="p">(</span><span class="nx">match</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="s2">&quot;&#39;);&quot;</span> <span class="o">+</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\\&#39;/g</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">)</span>
- <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/[\r\n\t]/g</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;;__p.push(&#39;&quot;</span><span class="p">;</span>
+ <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/[\r\n\t]/g</span><span class="p">,</span> <span class="s1">&#39; &#39;</span><span class="p">)</span>
+ <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\\\\/g</span><span class="p">,</span> <span class="s1">&#39;\\&#39;</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;;__p.push(&#39;&quot;</span><span class="p">;</span>
<span class="p">})</span>
<span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\r/g</span><span class="p">,</span> <span class="s1">&#39;\\r&#39;</span><span class="p">)</span>
<span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\n/g</span><span class="p">,</span> <span class="s1">&#39;\\n&#39;</span><span class="p">)</span>
@@ -588,31 +591,36 @@
<span class="k">return</span> <span class="kd">function</span><span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">func</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">data</span><span class="p">,</span> <span class="nx">_</span><span class="p">);</span>
<span class="p">};</span>
- <span class="p">};</span></pre></div> </td> </tr> <tr id="section-121"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-121">&#182;</a> </div> <h2>The OOP Wrapper</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-122"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-122">&#182;</a> </div> <p>If Underscore is called as a function, it returns a wrapped object that
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-122"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-122">&#182;</a> </div> <p>Add a "chain" function, which will delegate to the wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">chain</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">)</span> <span class="p">{</span>
+ <span class="k">return</span> <span class="nx">_</span><span class="p">(</span><span class="nx">obj</span><span class="p">).</span><span class="nx">chain</span><span class="p">();</span>
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-123"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-123">&#182;</a> </div> <h2>The OOP Wrapper</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-124"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-124">&#182;</a> </div> <p>If Underscore is called as a function, it returns a wrapped object that
can be used OO-style. This wrapper holds altered versions of all the
-underscore functions. Wrapped objects may be chained.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">wrapper</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">)</span> <span class="p">{</span> <span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span> <span class="o">=</span> <span class="nx">obj</span><span class="p">;</span> <span class="p">};</span></pre></div> </td> </tr> <tr id="section-123"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-123">&#182;</a> </div> <p>Expose <code>wrapper.prototype</code> as <code>_.prototype</code></p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-124"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-124">&#182;</a> </div> <p>Helper function to continue chaining intermediate results.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">result</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">chain</span><span class="p">)</span> <span class="p">{</span>
+underscore functions. Wrapped objects may be chained.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">wrapper</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">)</span> <span class="p">{</span> <span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span> <span class="o">=</span> <span class="nx">obj</span><span class="p">;</span> <span class="p">};</span></pre></div> </td> </tr> <tr id="section-125"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-125">&#182;</a> </div> <p>Expose <code>wrapper.prototype</code> as <code>_.prototype</code></p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-126"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-126">&#182;</a> </div> <p>Helper function to continue chaining intermediate results.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">result</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">chain</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">chain</span> <span class="o">?</span> <span class="nx">_</span><span class="p">(</span><span class="nx">obj</span><span class="p">).</span><span class="nx">chain</span><span class="p">()</span> <span class="o">:</span> <span class="nx">obj</span><span class="p">;</span>
- <span class="p">};</span></pre></div> </td> </tr> <tr id="section-125"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-125">&#182;</a> </div> <p>A method to easily add functions to the OOP wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">addToWrapper</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">func</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-127"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-127">&#182;</a> </div> <p>A method to easily add functions to the OOP wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">addToWrapper</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">func</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">args</span> <span class="o">=</span> <span class="nx">slice</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">arguments</span><span class="p">);</span>
<span class="nx">unshift</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="nx">args</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">result</span><span class="p">(</span><span class="nx">func</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="nx">_</span><span class="p">,</span> <span class="nx">args</span><span class="p">),</span> <span class="k">this</span><span class="p">.</span><span class="nx">_chain</span><span class="p">);</span>
<span class="p">};</span>
- <span class="p">};</span></pre></div> </td> </tr> <tr id="section-126"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-126">&#182;</a> </div> <p>Add all of the Underscore functions to the wrapper object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">mixin</span><span class="p">(</span><span class="nx">_</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-127"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-127">&#182;</a> </div> <p>Add all mutator Array functions to the wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">each</span><span class="p">([</span><span class="s1">&#39;pop&#39;</span><span class="p">,</span> <span class="s1">&#39;push&#39;</span><span class="p">,</span> <span class="s1">&#39;reverse&#39;</span><span class="p">,</span> <span class="s1">&#39;shift&#39;</span><span class="p">,</span> <span class="s1">&#39;sort&#39;</span><span class="p">,</span> <span class="s1">&#39;splice&#39;</span><span class="p">,</span> <span class="s1">&#39;unshift&#39;</span><span class="p">],</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-128"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-128">&#182;</a> </div> <p>Add all of the Underscore functions to the wrapper object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">mixin</span><span class="p">(</span><span class="nx">_</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-129"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-129">&#182;</a> </div> <p>Add all mutator Array functions to the wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">each</span><span class="p">([</span><span class="s1">&#39;pop&#39;</span><span class="p">,</span> <span class="s1">&#39;push&#39;</span><span class="p">,</span> <span class="s1">&#39;reverse&#39;</span><span class="p">,</span> <span class="s1">&#39;shift&#39;</span><span class="p">,</span> <span class="s1">&#39;sort&#39;</span><span class="p">,</span> <span class="s1">&#39;splice&#39;</span><span class="p">,</span> <span class="s1">&#39;unshift&#39;</span><span class="p">],</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">method</span> <span class="o">=</span> <span class="nx">ArrayProto</span><span class="p">[</span><span class="nx">name</span><span class="p">];</span>
<span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
- <span class="nx">method</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">);</span>
- <span class="k">return</span> <span class="nx">result</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">_chain</span><span class="p">);</span>
+ <span class="kd">var</span> <span class="nx">wrapped</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">;</span>
+ <span class="nx">method</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="nx">wrapped</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">);</span>
+ <span class="kd">var</span> <span class="nx">length</span> <span class="o">=</span> <span class="nx">wrapped</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
+ <span class="k">if</span> <span class="p">((</span><span class="nx">name</span> <span class="o">==</span> <span class="s1">&#39;shift&#39;</span> <span class="o">||</span> <span class="nx">name</span> <span class="o">==</span> <span class="s1">&#39;splice&#39;</span><span class="p">)</span> <span class="o">&amp;&amp;</span> <span class="nx">length</span> <span class="o">===</span> <span class="mi">0</span><span class="p">)</span> <span class="k">delete</span> <span class="nx">wrapped</span><span class="p">[</span><span class="mi">0</span><span class="p">];</span>
+ <span class="k">return</span> <span class="nx">result</span><span class="p">(</span><span class="nx">wrapped</span><span class="p">,</span> <span class="k">this</span><span class="p">.</span><span class="nx">_chain</span><span class="p">);</span>
<span class="p">};</span>
- <span class="p">});</span></pre></div> </td> </tr> <tr id="section-128"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-128">&#182;</a> </div> <p>Add all accessor Array functions to the wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">each</span><span class="p">([</span><span class="s1">&#39;concat&#39;</span><span class="p">,</span> <span class="s1">&#39;join&#39;</span><span class="p">,</span> <span class="s1">&#39;slice&#39;</span><span class="p">],</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="p">{</span>
+ <span class="p">});</span></pre></div> </td> </tr> <tr id="section-130"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-130">&#182;</a> </div> <p>Add all accessor Array functions to the wrapper.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">each</span><span class="p">([</span><span class="s1">&#39;concat&#39;</span><span class="p">,</span> <span class="s1">&#39;join&#39;</span><span class="p">,</span> <span class="s1">&#39;slice&#39;</span><span class="p">],</span> <span class="kd">function</span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">method</span> <span class="o">=</span> <span class="nx">ArrayProto</span><span class="p">[</span><span class="nx">name</span><span class="p">];</span>
<span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">result</span><span class="p">(</span><span class="nx">method</span><span class="p">.</span><span class="nx">apply</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">,</span> <span class="nx">arguments</span><span class="p">),</span> <span class="k">this</span><span class="p">.</span><span class="nx">_chain</span><span class="p">);</span>
<span class="p">};</span>
- <span class="p">});</span></pre></div> </td> </tr> <tr id="section-129"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-129">&#182;</a> </div> <p>Start chaining a wrapped Underscore object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">chain</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
+ <span class="p">});</span></pre></div> </td> </tr> <tr id="section-131"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-131">&#182;</a> </div> <p>Start chaining a wrapped Underscore object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">chain</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">_chain</span> <span class="o">=</span> <span class="kc">true</span><span class="p">;</span>
<span class="k">return</span> <span class="k">this</span><span class="p">;</span>
- <span class="p">};</span></pre></div> </td> </tr> <tr id="section-130"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-130">&#182;</a> </div> <p>Extracts the result from a wrapped and chained object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">value</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
+ <span class="p">};</span></pre></div> </td> </tr> <tr id="section-132"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-132">&#182;</a> </div> <p>Extracts the result from a wrapped and chained object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">wrapper</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">value</span> <span class="o">=</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">_wrapped</span><span class="p">;</span>
<span class="p">};</span>
View
42 index.html
@@ -126,11 +126,11 @@
<table>
<tr>
- <td><a href="underscore.js">Development Version (1.2.3)</a></td>
+ <td><a href="underscore.js">Development Version (1.2.4)</a></td>
<td><i>34kb, Uncompressed with Comments</i></td>
</tr>
<tr>
- <td><a href="underscore-min.js">Production Version (1.2.3)</a></td>
+ <td><a href="underscore-min.js">Production Version (1.2.4)</a></td>
<td><i>&lt; 4kb, Minified and Gzipped</i></td>
</tr>
</table>
@@ -232,7 +232,7 @@ <h2 id="styles">Object-Oriented and Functional Styles</h2>
{line : 4, words : "He sleeps all night and he works all day"}
];
-_(lyrics).chain()
+_.chain(lyrics)
.map(function(line) { return line.words.split(' '); })
.flatten()
.reduce(function(counts, word) {
@@ -958,11 +958,11 @@ <h2 id="styles">Object-Oriented and Functional Styles</h2>
The primary purpose of this method is to "tap into" a method chain, in order to perform operations on intermediate results within the chain.
</p>
<pre>
-_([1,2,3,200]).chain().
- filter(function(num) { return num % 2 == 0; }).
- tap(console.log).
- map(function(num) { return num * num }).
- value();
+_.chain([1,2,3,200])
+ .filter(function(num) { return num % 2 == 0; })
+ .tap(console.log)
+ .map(function(num) { return num * num })
+ .value();
=&gt; [2, 200]
=&gt; [4, 40000]
</pre>
@@ -1257,7 +1257,7 @@ <h2 id="styles">Object-Oriented and Functional Styles</h2>
<h2>Chaining</h2>
<p id="chain">
- <b class="header">chain</b><code>_(obj).chain()</code>
+ <b class="header">chain</b><code>_.chain(obj)</code>
<br />
Returns a wrapped object. Calling methods on this object will continue
to return wrapped objects until <tt>value</tt> is used. (
@@ -1265,7 +1265,7 @@ <h2 id="styles">Object-Oriented and Functional Styles</h2>
</p>
<pre>
var stooges = [{name : 'curly', age : 25}, {name : 'moe', age : 21}, {name : 'larry', age : 23}];
-var youngest = _(stooges).chain()
+var youngest = _.chain(stooges)
.sortBy(function(stooge){ return stooge.age; })
.map(function(stooge){ return stooge.name + ' is ' + stooge.age; })
.first()
@@ -1342,6 +1342,28 @@ <h2 id="styles">Object-Oriented and Functional Styles</h2>
<h2 id="changelog">Change Log</h2>
<p>
+ <b class="header">1.2.4</b> &mdash; <small><i>Jan. 4, 2012</i></small><br />
+ <ul>
+ <li>
+ You now can (and probably should) write <tt>_.chain(list)</tt>
+ instead of <tt>_(list).chain()</tt>.
+ </li>
+ <li>
+ Fix for escaped characters in Underscore templates, and for supporting
+ customizations of <tt>_.templateSettings</tt> that only define one or
+ two of the required regexes.
+ </li>
+ <li>
+ Fix for passing an array as the first argument to an <tt>_.wrap</tt>'d function.
+ </li>
+ <li>
+ Improved compatibility with ClojureScript, which adds a <tt>call</tt>
+ function to <tt>String.prototype</tt>.
+ </li>
+ </ul>
+ </p>
+
+ <p>
<b class="header">1.2.3</b> &mdash; <small><i>Dec. 7, 2011</i></small><br />
<ul>
<li>
View
2  package.json
@@ -8,5 +8,5 @@
"dependencies" : [],
"repository" : {"type": "git", "url": "git://github.com/documentcloud/underscore.git"},
"main" : "underscore.js",
- "version" : "1.2.3"
+ "version" : "1.2.4"
}
View
47 underscore-min.js
@@ -1,5 +1,5 @@
-// Underscore.js 1.2.3
-// (c) 2009-2011 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore.js 1.2.4
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
// Oliver Steele's Functional, and John Resig's Micro-Templating.
@@ -7,24 +7,25 @@
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View
6 underscore.js
@@ -1,5 +1,5 @@
-// Underscore.js 1.2.3
-// (c) 2009-2011 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore.js 1.2.4
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Underscore is freely distributable under the MIT license.
// Portions of Underscore are inspired or borrowed from Prototype,
// Oliver Steele's Functional, and John Resig's Micro-Templating.
@@ -67,7 +67,7 @@
}
// Current version.
- _.VERSION = '1.2.3';
+ _.VERSION = '1.2.4';
// Collection Functions
// --------------------
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