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MediaQueryList

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

A MediaQueryList object maintains a list of media queries on a document, and handles sending notifications to listeners when the media queries on the document change.

This makes it possible to observe a document to detect when its media queries change, instead of polling the values periodically, if you need to programmatically detect changes to the values of media queries on a document.

Method overview

void addListener(MediaQueryListListener listener);
void removeListener(MediaQueryListListener listener);

Properties

Property Type Description
matches boolean true if the document currently matches the media query list; otherwise false. Read only.
media DOMString The serialized media query list.

Methods

addListener()

Adds a new listener to the media query list. If the specified listener is already in the list, this method has no effect.

void addListener(
  MediaQueryListListener listener
);

Parameter (for addListener method)

listener
The MediaQueryListListener to invoke when the media query's evaluated result changes.

removeListener()

Removes a listener from the media query list. Does nothing if the specified listener isn't already in the list.

void removeListener(
  MediaQueryListListener listener
);

Parameter (for removeListener method)

listener
The MediaQueryListListener to stop calling on changes to the media query's evaluated result.

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 (Yes) 6.0 (6.0) 10 12.1 5
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) ? ? ? ?

See also

© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/MediaQueryList