window.matchMedia

Returns a new MediaQueryList object representing the parsed results of the specified media query string.

Syntax

mql = window.matchMedia(mediaQueryString)

where mediaQueryString is a string representing the media query for which to return a new MediaQueryList object.

Example

if (window.matchMedia("(min-width: 400px)").matches) {
  /* the viewport is at least 400 pixels wide */
} else {
  /* the viewport is less than 400 pixels wide */
}

This code lets you handle things differently when the window is very narrow.

See Using media queries from code for additional examples.

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• Media queries
• Using media queries from code
• MediaQueryList
• MediaQueryListListener