Unlock the Power of Event Propagation for Efficient DOM Manipulation
In the dynamic world of web development, understanding event propagation is crucial for creating responsive and interactive user interfaces. Event bubbling and capturing are two fundamental concepts that govern how events travel through the Document Object Model (DOM).
By mastering these techniques, you can unlock new possibilities for efficient DOM manipulation and event handling.
Event Bubbling: Riding the Wave of Events
Event bubbling is a mechanism where an event triggered on a specific element “bubbles up” through its parent elements until it reaches the top of the DOM hierarchy.
This behavior allows you to attach event listeners to parent elements and handle events that occur on their child elements. Here’s an example of event bubbling in action:
// HTML
<div id="parent">
<button id="child">Click me</button>
</div>// JavaScript
const parent = document.getElementById('parent');
const child = document.getElementById('child');
parent.addEventListener('click', () => {
console.log('Parent element clicked');
});
child.addEventListener('click', () => {…