Simon Willison's Weblog: modulepatternhttp://simonwillison.net/2009-04-30T19:59:39+00:00Simon WillisonWhy I don't love JavaScript's Module Pattern2009-04-30T19:59:39+00:002009-04-30T19:59:39+00:00https://simonwillison.net/2009/Apr/30/module/#atom-tag
<p><strong><a href="http://snook.ca/archives/javascript/no-love-for-module-pattern">Why I don't love JavaScript's Module Pattern</a></strong></p>
Jonathan Snook points out that the module pattern (where private functionality is hidden in a closure and only public methods are revealed to outside scopes) makes code a lot harder to debug. I use the module pattern for pretty much everything, not because I want to keep stuff private but more to avoid any chance of leaking out in to the global namespace. If I need to debug a value I temporarily assign it as a property on the global window object.
<p>Tags: <a href="https://simonwillison.net/tags/closures">closures</a>, <a href="https://simonwillison.net/tags/debugging">debugging</a>, <a href="https://simonwillison.net/tags/javascript">javascript</a>, <a href="https://simonwillison.net/tags/jonathan-snook">jonathan-snook</a>, <a href="https://simonwillison.net/tags/modulepattern">modulepattern</a></p>
Module Pattern Provides No Privacy... at least not in JavaScript(TM)2008-06-27T19:01:34+00:002008-06-27T19:01:34+00:00https://simonwillison.net/2008/Jun/27/peters/#atom-tag
<p><strong><a href="http://peter.michaux.ca/article/8069">Module Pattern Provides No Privacy... at least not in JavaScript(TM)</a></strong></p>
JavaScript variables hidden inside a closure aren’t as hidden as I thought—it turns out you can pass a closure as the second argument to eval (at least in Firefox) and “steal” private variables back out of it.
<p><small></small>Via <a href="http://ajaxian.com/archives/evalfooa-objfn-how-you-arent-private-in-firefox">Ajaxian</a></small></p>
<p>Tags: <a href="https://simonwillison.net/tags/closures">closures</a>, <a href="https://simonwillison.net/tags/firefox">firefox</a>, <a href="https://simonwillison.net/tags/javascript">javascript</a>, <a href="https://simonwillison.net/tags/modulepattern">modulepattern</a>, <a href="https://simonwillison.net/tags/pete-michaux">pete-michaux</a></p>