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Event bubbling is a fundamental concept in JavaScript that describes how events propagate through the DOM (Document Object Model) hierarchy. When an event occurs on an element, it doesn’t just affect that element; it can also trigger events on its parent elements, and so on, all the way up to the root of the document.
What is Event Bubbling?
Event bubbling is a process where an event triggered on a specific element will also trigger the same event on its parent elements, and so on, until it reaches the top of the DOM tree (the document object). This behavior allows you to handle events at different levels of the DOM hierarchy, making your code more flexible and efficient.
How Does Event Bubbling Work?
When an event occurs on an element, the browser first checks if the element has an event listener for that specific event. If it does, the event handler is executed. Then, the event “bubbles up” the DOM tree, triggering the same event on each parent element, until it reaches the document object.
Here’s a simple example to illustrate event bubbling:
<div id="outer">
<div id="inner">
Click me!
</div>
</div>const outerDiv = document.getElementById('outer');
const innerDiv =…
