This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

A MediaQueryList object stores information on a media query applied to a document, and handles sending notifications to listeners when the media query state change (i.e. when the media query test starts or stops evaluating to true).

This makes it possible to observe a document to detect when its media queries change, instead of polling the values periodically, and allows you to programmatically make changes to a document based on media query status.

Properties

The new version of the MediaQueryList interface inherits properties from its parent interface, EventTarget.

MediaQueryList.matches Read only
A Boolean that returns true if the document currently matches the media query list, or false if not.
MediaQueryList.media Read only
A DOMString representing a serialized media query.

Event handlers

MediaQueryList.onchange
An event handler property representing a function that is invoked when the change event fires, i.e when the status of media query support changes. The event object is a MediaQueryListEvent instance, which is recognised as a MediaListQuery instance in older browsers, for backwards compatibility purposes.

Methods

The new version of the MediaQueryList interface inherits methods from its parent interface, EventTarget.

MediaQueryList.addListener()
Adds a listener to the MediaQueryListener that will run a custom callback function in response to the media query status changing. This is basically an alias for EventTarget.addEventListener(), for backwards compatibility purposes.
MediaQueryList.removeListener()
Removes a listener from the MediaQueryListener. This is basically an alias for EventTarget.removeEventListener(), for backwards compatibility purposes.

Examples

This simple example creates a MediaQueryList and then sets up a listener to detect when the media query status changes, running a custom function when it does to change the appearence of the page.

var para = document.querySelector('p');

var mql = window.matchMedia('(max-width: 600px)');

function screenTest(e) {
  if (e.matches) {
    /* the viewport is 600 pixels wide or less */
    para.textContent = 'This is a narrow screen — less than 600px wide.';
    document.body.style.backgroundColor = 'red';
  } else {
    /* the viewport is more than than 600 pixels wide */
    para.textContent = 'This is a wide screen — more than 600px wide.';
    document.body.style.backgroundColor = 'blue';
  }
}

mql.addListener(screenTest);

Note: You can find this example on GitHub (see the source code, and also see it running live).

Specifications

Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'MediaQueryList' in that specification.
Working Draft Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Experimental
Chrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5WebView Android Full support YesChrome Android Full support 18Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
addListenerChrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
matchesChrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
mediaChrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
onchangeChrome Full support YesEdge ? Firefox Full support 55IE No support NoOpera Full support YesSafari ? WebView Android No support NoChrome Android Full support YesEdge Mobile ? Firefox Android Full support 55Opera Android Full support YesSafari iOS ? Samsung Internet Android ?
removeListenerChrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
EventListener objects as parametersChrome No support NoEdge ? Firefox Full support 55IE No support NoOpera No support NoSafari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 55Opera Android No support NoSafari iOS ? Samsung Internet Android ?
MediaQueryList inheriting from EventTargetChrome Full support YesEdge Full support 16Firefox Full support 55IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support 16Firefox Android Full support 55Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also

Document Tags and Contributors

Last updated by: mfluehr,