ImageTrackList: ready property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is available in Dedicated Web Workers.

The ready property of the ImageTrackList interface returns a Promise that resolves when the ImageTrackList is populated with tracks.

A Promise that resolves with undefined.

The following example prints the value of ready to the console, this will be undefined once the promise resolves.

let tracks = imageDecoder.tracks;
let ready = await tracks.ready;
console.log(ready);

Specification
WebCodecs # dom-imagetracklist-ready

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