The matches read-only property of the MediaQueryList interface is a Boolean that returns true if the document currently matches the media query list, or false if not.


var matches = MediaQueryList.matches;


A Boolean; returns true if the document currently matches the media query list, false if not.


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

if(mql.matches) {
  // media query test returning true


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
matchesChrome Full support 9Edge Full support 12Firefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5.1WebView Android Full support YesChrome Android Full support 18Edge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support 5Samsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also

Document Tags and Contributors

Contributors to this page: ExE-Boss, mdnwebdocs-bot, fscholz, chrisdavidmills
Last updated by: ExE-Boss,