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 compatibility

See also

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