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As you work with JavaScript and the DOM, understanding event propagation is crucial. Event bubbling and capturing can have a significant impact on your application’s performance, especially when dealing with large or complex DOM structures.
Event bubbling, as you learned in the previous article, is the process where an event triggered on a child element “bubbles up” through its parent elements. Event capturing is the opposite, where the event is first captured by the outermost parent element and then propagates down to the target element.
While these mechanisms are powerful, they can also lead to performance issues if not managed correctly. Let’s explore some scenarios and strategies to optimize your code.
Scenario 1: Excessive event listeners
Imagine you have a large list of items, each with its own event listener. This can quickly become a performance bottleneck, as the browser has to manage and trigger numerous event listeners.
