MediaDevices.getSupportedConstraints()

The getSupportedConstraints() method of the MediaDevices interface returns an object based on the MediaTrackSupportedConstraints dictionary, whose member fields each specify one of the constrainable properties the user agent understands.

Syntax

var supportedConstraints = navigator.mediaDevices.getSupportedConstraints();

Parameters

None.

Return value

A new object based on the MediaTrackSupportedConstraints dictionary listing the constraints supported by the user agent. Because only constraints supported by the user agent are included in the list, each of these Boolean properties has the value true.

Example

This example outputs a list of the constraints supported by your browser.

let constraintList = document.getElementById("constraintList");
let supportedConstraints = navigator.mediaDevices.getSupportedConstraints();

for (let constraint in supportedConstraints) {
  if (supportedConstraints.hasOwnProperty(constraint)) {
    let elem = document.createElement("li");

    elem.innerHTML = "<code>" + constraint + "</code>";
    constraintList.appendChild(elem);
  }
}

Result

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
getSupportedConstraints
53
12
44
No
40
11
53
52
50
41
11
6.0

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https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getSupportedConstraints