Window: blur event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

The blur event fires when an element has lost focus.

The opposite of blur is focus.

This event is not cancelable and does not bubble.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("blur", (event) => { })

onblur = (event) => { }