What Is Event Bubbling and Event Capturing?

What Is Event Bubbling and Event Capturing?

When an event occurs in the DOM, it propagates through different elements.

This process is known as event propagation.

Event Bubbling

In event bubbling:

• The event starts at the target element.
• It then moves upward through parent elements.

This is the default behavior in most browsers.

Event Capturing

In event capturing:

• The event starts from the outermost ancestor.
• It travels downward toward the target element.

Why Is This Important?

Understanding event propagation helps developers:

• Handle User Interactions
• Build Complex UIs
• Debug Event-Related Issues

The Bottom Line

Event bubbling moves events upward through the DOM, while event capturing moves events downward toward the target element.