Interview Question

What is event handling?

Event handling uses listeners to respond to dispatched events.

💡 Concept ✅ Quick Revision ⚡ JavaScript

Answer

Event handling is responding to dispatched Event objects on EventTarget objects. • Listeners are registered for an event type. • The event dispatch algorithm follows a path through relevant targets. • Default actions are separate from listener execution and can sometimes be canceled.

Example

Code

document.querySelector('button')?.addEventListener('click', event => {
  console.log(event.type);
});

Output

click

Quick Revision

Event handling uses listeners to respond to dispatched events.

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