What Is Event Delegation in JavaScript?

What Is Event Delegation in JavaScript?

Event Delegation is a technique where a parent element handles events for its child elements.

Instead of attaching event listeners to multiple child elements, a single listener is attached to a common parent.

Why Use Event Delegation?

Benefits include:

• Better Performance
• Less Memory Usage
• Cleaner Code
• Easier Dynamic DOM Handling

How Does It Work?

Event Delegation relies on:

• Event Bubbling
• Event Propagation

The parent element receives events triggered by its children.

Common Use Cases

Examples include:

• Dynamic Lists
• Menus
• Tables
• Large Collections of Elements

The Bottom Line

Event Delegation improves efficiency by handling multiple child element events through a single parent event listener.