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<!DOCTYPE html> <html> <head> <title>browser.coffee</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> <div id="jump_to"> Jump To … <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="browser.html"> browser.coffee </a> <a class="source" href="cake.html"> cake.coffee </a> <a class="source" href="coffee-script.html"> coffee-script.coffee </a> <a class="source" href="command.html"> command.coffee </a> <a class="source" href="grammar.html"> grammar.coffee </a> <a class="source" href="helpers.html"> helpers.coffee </a> <a class="source" href="index.html"> index.coffee </a> <a class="source" href="lexer.html"> lexer.coffee </a> <a class="source" href="nodes.html"> nodes.coffee </a> <a class="source" href="optparse.html"> optparse.coffee </a> <a class="source" href="repl.html"> repl.coffee </a> <a class="source" href="rewriter.html"> rewriter.coffee </a> <a class="source" href="scope.html"> scope.coffee </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> browser.coffee </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">¶</a> </div> <p>Override exported methods for non-Node.js engines.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">CoffeeScript = </span><span class="nx">require</span> <span class="s">'./coffee-script'</span>
<span class="nv">CoffeeScript.require = </span><span class="nx">require</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">¶</a> </div> <p>Use standard JavaScript <code>eval</code> to eval code.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">CoffeeScript.eval = </span><span class="nf">(code, options = {}) -></span>
<span class="nx">options</span><span class="p">.</span><span class="nx">bare</span> <span class="o">?=</span> <span class="kc">on</span>
<span class="nb">eval</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">options</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">¶</a> </div> <p>Running code does not provide access to this scope.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">CoffeeScript.run = </span><span class="nf">(code, options = {}) -></span>
<span class="nv">options.bare = </span><span class="kc">on</span>
<span class="nb">Function</span><span class="p">(</span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">options</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">¶</a> </div> <p>If we're not in a browser environment, we're finished with the public API.</p> </td> <td class="code"> <div class="highlight"><pre><span class="k">return</span> <span class="k">unless</span> <span class="nb">window</span><span class="o">?</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">¶</a> </div> <p>Load a remote script from the current domain via XHR.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">CoffeeScript.load = </span><span class="nf">(url, callback) -></span>
<span class="nv">xhr = </span><span class="k">if</span> <span class="nb">window</span><span class="p">.</span><span class="nx">ActiveXObject</span>
<span class="k">new</span> <span class="nb">window</span><span class="p">.</span><span class="nx">ActiveXObject</span><span class="p">(</span><span class="s">'Microsoft.XMLHTTP'</span><span class="p">)</span>
<span class="k">else</span>
<span class="k">new</span> <span class="nx">XMLHttpRequest</span><span class="p">()</span>
<span class="nx">xhr</span><span class="p">.</span><span class="nx">open</span> <span class="s">'GET'</span><span class="p">,</span> <span class="nx">url</span><span class="p">,</span> <span class="kc">true</span>
<span class="nx">xhr</span><span class="p">.</span><span class="nx">overrideMimeType</span> <span class="s">'text/plain'</span> <span class="k">if</span> <span class="s">'overrideMimeType'</span> <span class="k">of</span> <span class="nx">xhr</span>
<span class="nv">xhr.onreadystatechange = </span><span class="nf">-></span>
<span class="k">if</span> <span class="nx">xhr</span><span class="p">.</span><span class="nx">readyState</span> <span class="o">is</span> <span class="mi">4</span>
<span class="k">if</span> <span class="nx">xhr</span><span class="p">.</span><span class="nx">status</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">200</span><span class="p">]</span>
<span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">xhr</span><span class="p">.</span><span class="nx">responseText</span>
<span class="k">else</span>
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s">"Could not load </span><span class="si">#{</span><span class="nx">url</span><span class="si">}</span><span class="s">"</span>
<span class="nx">callback</span><span class="p">()</span> <span class="k">if</span> <span class="nx">callback</span>
<span class="nx">xhr</span><span class="p">.</span><span class="nx">send</span> <span class="kc">null</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">¶</a> </div> <p>Activate CoffeeScript in the browser by having it compile and evaluate
all script tags with a content-type of <code>text/coffeescript</code>.
This happens on page load.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">runScripts = </span><span class="nf">-></span>
<span class="nv">scripts = </span><span class="nb">document</span><span class="p">.</span><span class="nx">getElementsByTagName</span> <span class="s">'script'</span>
<span class="nv">coffees = </span><span class="p">(</span><span class="nx">s</span> <span class="k">for</span> <span class="nx">s</span> <span class="k">in</span> <span class="nx">scripts</span> <span class="k">when</span> <span class="nx">s</span><span class="p">.</span><span class="nx">type</span> <span class="o">is</span> <span class="s">'text/coffeescript'</span><span class="p">)</span>
<span class="nv">index = </span><span class="mi">0</span>
<span class="nv">length = </span><span class="nx">coffees</span><span class="p">.</span><span class="nx">length</span>
<span class="nx">do</span> <span class="nv">execute = </span><span class="nf">-></span>
<span class="nv">script = </span><span class="nx">coffees</span><span class="p">[</span><span class="nx">index</span><span class="o">++</span><span class="p">]</span>
<span class="k">if</span> <span class="nx">script</span><span class="o">?</span><span class="p">.</span><span class="nx">type</span> <span class="o">is</span> <span class="s">'text/coffeescript'</span>
<span class="k">if</span> <span class="nx">script</span><span class="p">.</span><span class="nx">src</span>
<span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">load</span> <span class="nx">script</span><span class="p">.</span><span class="nx">src</span><span class="p">,</span> <span class="nx">execute</span>
<span class="k">else</span>
<span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">script</span><span class="p">.</span><span class="nx">innerHTML</span>
<span class="nx">execute</span><span class="p">()</span>
<span class="kc">null</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">¶</a> </div> <p>Listen for window load, both in browsers and in IE.</p> </td> <td class="code"> <div class="highlight"><pre><span class="k">if</span> <span class="nb">window</span><span class="p">.</span><span class="nx">addEventListener</span>
<span class="nx">addEventListener</span> <span class="s">'DOMContentLoaded'</span><span class="p">,</span> <span class="nx">runScripts</span><span class="p">,</span> <span class="kc">no</span>
<span class="k">else</span>
<span class="nx">attachEvent</span> <span class="s">'onload'</span><span class="p">,</span> <span class="nx">runScripts</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
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