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copied!<p>Javascript uses prototypal inheritance. Crockford has an excellent article on <a href="http://www.crockford.com/javascript/inheritance.html" rel="nofollow noreferrer">how that's different from classical inheritance</a>. Prototypal inheritance in JavaScript allows you to do all sorts of things that C++, Java, C#, etc. may not allow you to do and in ways that you may not expect. Because that's what's built into Javascript, others have created methods of extension such as <a href="http://www.ruzee.com/blog/2008/12/javascript-inheritance-via-prototypes-and-closures" rel="nofollow noreferrer">closure-based</a> inheritance where classes are created with closures instead of the standard formula.</p> <p>The library that you linked to states in its <a href="http://help.arcgis.com/en/webapi/javascript/arcgis/help/jshelp/overview_api.htm" rel="nofollow noreferrer">documentation</a> that is based on <a href="http://dojotoolkit.org/" rel="nofollow noreferrer">dojo</a>, <em>not</em> jQuery. The two are both Javascript frameworks and are different.</p> <p>For inheritance in dojo I doubt you could do much better than the <a href="https://stackoverflow.com/questions/355848/how-can-i-emulate-classes-in-javascript-with-or-without-a-3rd-party-library/356343#356343">references in this answer</a> to a similar question about inheritance in dojo. One option suggests looking at <code>dojo.delegate();</code> and <code>dojo.declare();</code>. <a href="http://www.ibm.com/developerworks/web/library/wa-aj-dojo/" rel="nofollow noreferrer">This article</a> has a good overview of classes using dojo in Javascript.</p>

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