windowmatchMedia

Window.matchMedia is a method available in web browsers that allows developers to apply CSS media queries to JavaScript. It is part of the Window interface and is used to check if the document matches a specified media query. This method is particularly useful for creating responsive web designs that adapt to different screen sizes, orientations, and other environmental conditions.

The matchMedia method takes a single argument, which is a string representing the media query. The method returns a MediaQueryList object, which contains information about whether the document currently matches the media query and provides a way to listen for changes to the media query's state.

The MediaQueryList object has two main properties: matches and media. The matches property is a boolean that indicates whether the document currently matches the media query. The media property is a string that contains the serialized media query list.

The MediaQueryList object also has two main methods: addListener and removeListener. The addListener method allows developers to register a callback function that will be called whenever the media query's state changes. The removeListener method allows developers to unregister a previously registered callback function.

The matchMedia method is widely supported in modern web browsers, including Chrome, Firefox, Safari, and Edge. However, it is not supported in Internet Explorer. Developers should use feature detection to ensure that the matchMedia method is available before using it in their code.