Mastering JavaScript&#s Event Delegation

Event Delegation is a lesser-known JavaScript technique that can boost your web app’s performance.

Instead of attaching event listeners to multiple elements, you can leverage a single listener on a common parent element to handle events for all its children.

This technique reduces memory usage and improves efficiency by minimizing the number of event listeners in your app.

Example:

document.getElementById('parentElement').addEventListener('click', (event) => {
 if (event.target.matches('button')) {
 console.log('Button clicked!');
 }
});

By attaching a single listener to the parent, you handle clicks for all child buttons with just one function! It’s a great way to make your code more efficient and maintainable.

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