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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.

Value

A Promise that resolves with undefined.

Examples

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);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
ready 94 94 133 80 No 94 133 66 No 17.0 94 No

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https://developer.mozilla.org/en-US/docs/Web/API/ImageTrackList/ready