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    <p>AS Josh Stodola mentioned creating the variable at runtime isn't the problem</p> <pre><code>var holdsWidgetUUID = "widgetUUIDValue"; eval(holdsWidgetUUID + "= (" + data + ")"); alert(eval(holdsWidgetUUID)); </code></pre> <p>Or if you prefer</p> <pre><code>var UUID = "widgetUUID"; var holdsWidgetUUID = "widgetUUIDValue"; window["widgets"] = new Array(); window["widgets"][holdsWidgetUUID] = data; alert(window["widgets"][holdsWidgetUUID]); </code></pre> <p>The problem is getting the loaded javascript to work an be callable like dynamicvariablename.methodname()</p> <p>I have a working solution if you force a certain coding practice upon the included javascript. Maybe this gets you in the right direction.</p> <p>This is a widgets javascript (works.js). Notive that it's a javascript "class" with internally defined fields and methods. Which by itself keeps namespace pollution low and allows us the achieve the desired calling form x.getInfo()</p> <pre><code>function () { this.type = 1; this.color = "red"; this.getInfo = function() { return this.color + ' ' + this.type + ' widget'; }; } </code></pre> <p>And this is the file which includes it at runtime in a namespace</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;Widget Magic?&lt;/title&gt; &lt;script type='text/javascript' src='jquery.js'&gt;&lt;/script&gt; &lt;script type='text/javascript'&gt; var UUID = "widgetUUID"; var holdsWidgetUUID = "widgetUUIDValue"; window["widgets"] = new Array(); $.get("works.js", function(data) { window["widgets"][holdsWidgetUUID] = eval("(" + data + ")"); $(document).ready(function() { window["widgets"][holdsWidgetUUID] = new (window["widgets"][holdsWidgetUUID])(); alert(window["widgets"][holdsWidgetUUID].color); alert(window["widgets"][holdsWidgetUUID].getInfo()); }); }); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;p&gt;Just some stuff&lt;/p&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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    1. COThis explanation helped me tremendously, thank you! This method is great for me since I get to specify the widget API.
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