Web/API/GlobalEventHandlers/onresize

The onresize property of the GlobalEventHandlers interface is an EventHandler that processes resize events.

The resize event fires after the window has been resized.

Syntax

window.onresize = functionRef;

Value

functionRef is a function name or a function expression. The function receives a FocusEvent object as its sole argument.

Examples

Window size logger

<p>Resize the browser window to fire the <code>resize</code> event.</p>
<p>Window height: <span id="height"></span></p>
<p>Window width: <span id="width"></span></p>

const heightOutput = document.querySelector('#height');
const widthOutput = document.querySelector('#width');

function resize() {
  heightOutput.textContent = window.innerHeight;
  widthOutput.textContent = window.innerWidth;
}

window.onresize = resize;

Specification

Specification	Status	Comment
HTML Living StandardThe definition of 'onresize' in that specification.	Living Standard

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onresize`	Chrome Full support 45	Edge Full support 12	Firefox Full support Yes	IE Full support Yes	Opera Full support 32	Safari Full support Yes	WebView Android Full support 45	Chrome Android Full support 45	Firefox Android Full support Yes	Opera Android Full support 32	Safari iOS Full support Yes	Samsung Internet Android Full support 5.0

Legend

Full support: Full support