web api instance property
MediaList: mediaText property
The mediaText property of the MediaList
interface is a stringifier that returns a string representing the
MediaList as text, and also allows you to set a new MediaList.
Value
A string representing the media queries of a stylesheet. Each one is
separated by a comma, for example
screen and (width >= 480px), print.
If you wish to set new media queries on the document, the string value must have the
different queries separated by commas, e.g., screen, print. Note that the
MediaList is a live list; updating the list via
mediaText will immediately update the behavior of the
document.
When set to the null value, that null value is converted to the empty string (""), so ml.mediaText = null is equivalent to ml.mediaText = "".
Examples
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);