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Event delegation is a technique in web development where a single event listener is attached to a parent element to handle events for its child elements, improving efficiency and code maintainability. This method is particularly useful for dynamic content and large, interactive elements like forms and lists. Key concepts include event bubbling and event propagation, which allow events to be managed efficiently without numerous individual listeners.

Enhancing Web Performance with Event Delegation

<pre><code>document.getElementById(&#x27;item-list&#x27;).addEventListener(&#x27;click&#x27;, function(event) {
 // Check if the clicked element is a list item
 if (event.target &amp;&amp; event.target.matches(&#x27;li.item&#x27;)) {
 console.log(&#x27;You clicked on&#x27;, event.target.textContent);
 }
});
</code></pre>
Isn’t the <code>event.target</code> condition redundant?