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    <p><em>Updated to include caveats in the comments below from</em> <a href="https://stackoverflow.com/users/5445/cms">CMS</a>, <a href="https://stackoverflow.com/users/96100/tim-down">Tim Down</a>, <a href="https://stackoverflow.com/users/375394/moogoo">MooGoo</a>:</p> <p>The closest thing available to what you're after is calling <a href="https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Object/toString" rel="noreferrer"><code>.toString()</code></a> on a function to get the full function text, like this:</p> <pre><code>function derp() { a(); b(); c(); } alert(derp.toString()); //"function derp() { a(); b(); c(); }" </code></pre> <p><a href="http://jsfiddle.net/nick_craver/F4pvf/" rel="noreferrer">You can give it a try here</a>, some caveats to be aware of though:</p> <ul> <li>The <code>.toString()</code> on function is <em>implementation-dependent</em> (<a href="http://www.ecma-international.org/publications/files/ECMA-ST-ARCH/ECMA-262,%203rd%20edition,%20December%201999.pdf" rel="noreferrer">Spec here</a> section <strong>15.3.4.2</strong>) <ul> <li><em>From the spec:</em> An implementation-dependent representation of the function is returned. This representation has the syntax of a <em>FunctionDeclaration</em>. Note in particular that the use and placement of white space, line terminators, and semicolons within the representation string is implementation-dependent.</li> <li>Noted differences in Opera Mobile, early Safari, neither displaying source like my example above.</li> </ul></li> <li>Firefox returns a compiled function, after optimization, for example: <ul> <li><code>(function() { x=5; 1+2+3; }).toString()</code> == <code>function() { x=5; }</code></li> </ul></li> </ul>
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    1. POCan Javascript get a function as text?
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    1. CO@delnan - Various objects override the `object.toString()` method, in the case of functions you get the full function text :)
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    2. COI knew js was very dynamic, reflective, has first-class functions, etc. But this is... well, I don't know if it's awesome or unnecessary bling-bling. A mix of both, I guess.
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    3. COWow, the code gets pretty formatting added too...!
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