MediaList: toString() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The toString() stringifier method of the MediaList interface returns a string representing the object's values. The value is a comma-separated list of media values in the same format as the MediaList.mediaText property.

Syntax

js
toString()

Parameters

None.

Return value

A string.

Examples

js
const firstStyleSheet = document.styleSheets[0]; // the document's first stylesheet
const mediaList = firstStyleSheet.media; // the mediaList of the stylesheet
// set the `media` text to a media query value
mediaList.mediaText = "SCREEN AND (140PX <= WIDTH <= 380PX)";
// add a second media value
mediaList.appendMedium("SCREEN AND (ORIENTATION: LANDSCAPE))");
// erroneously, add the same media query again
mediaList.appendMedium("SCREEN AND (ORIENTATION: LANDSCAPE))");
console.log(mediaList.toString());
// "screen and (140px <= width <= 380px), screen and (orientation: landscape)"

Specifications

Specification
CSS Object Model (CSSOM)
# MediaList-stringification-behavior

Browser compatibility

See also