The language read-only property of the TextTrack interface returns the language of the text track.

This uses the same values as the HTML lang attribute. These values are documented in the Tags for Identifying Languages (BCP 47) document from the IETF.


let language = TextTrack.language;


A string containing a language identifier. For example, "en-US" for United States English or "pt-BR" for Brazilian Portuguese.


In the following example the value of language is printed to the console.

let video = document.querySelector('video');
let track = video.addTextTrack("captions", "Captions", "en-US");
track.mode = "showing";


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