The MediaList interface represents the media queries of a stylesheet, e.g., those set using a <link> element's media attribute.
Note: MediaList is a live list; updating the list using properties or methods listed below will immediately update the behavior of the document.
MediaList.mediaTextA stringifier that returns a string representing the MediaList as text, and also allows you to set a new MediaList.
MediaList.length Read onlyReturns the number of media queries in the MediaList.
MediaList.appendMedium()Adds a media query to the MediaList.
MediaList.deleteMedium()Removes a media query from the MediaList.
MediaList.item()A getter that returns a string representing a media query as text, given the media query's index value inside the MediaList. This method can also be called using the bracket ([]) syntax.
MediaList.toString()Returns a string representation of this media list in the same format as the object's MediaList.mediaText property.
The following would log to the console a textual representation of the MediaList of the first stylesheet applied to the current document.
const stylesheets = document.styleSheets;
let stylesheet = stylesheets[0];
console.log(stylesheet.media.mediaText);