MediaQueryListEvent.matches

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

Syntax

var matches = MediaQueryListEvent.matches;

Value

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

Examples

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);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
matches
39
79
55
No
26
14
39
39
55
26
14
4.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/MediaQueryListEvent/matches