Using Unique and Toggle in a TreeView jQuery Hierarchical Navigation System

The TreeView jQuery plug-in is a small yet powerful JavaScript application that allows you to build hierarchical navigation systems whose branches can be collapsed and expanded using different animation effects. So if you’re planning to develop a web site that includes a navigation mechanism like this, start reading this series of articles. In it you’ll find a concise guide that will show you how to master the plug-in’s main features, by means of copious hands-on examples. This article is the fourth of six parts.
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Using Event Delegation for Mouseover Events in List Items

JavaScript-based event delegation is an efficient approach that allows us to reduce the number of event handlers included in a client-side application. This naturally contributes to improving its overall performance and reliability. This technique rests its functionality on the bubbling phase triggered by a specific event. It’s very simple to learn to code in real-world conditions. This article concludes a four-part series on event delegation.
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