MediaTrackSupportedConstraints.volume

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The MediaTrackSupportedConstraints dictionary's volume property is a read-only Boolean value which is present (and set to true) in the object returned by MediaDevices.getSupportedConstraints() if and only if the user agent supports the volume constraint. If the constraint isn't supported, it's not included in the list, so this value will never be false.

You can access the supported constraints dictionary by calling navigator.mediaDevices.getSupportedConstraints().

Syntax

volumeConstraintSupported = supportedConstraintsDictionary.volume;

Value

This property is present in the dictionary (and its value is always true) if the user agent supports the volume constraint. If the property isn't present, this property is missing from the supported constraints dictionary, and you'll get undefined if you try to look at its value.

Example

let result = document.getElementById("result");

if (navigator.mediaDevices.getSupportedConstraints().volume) {
  result.textContent = "Supported!";
} else {
  result.textContent = "Not supported!";
}

Result

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
`volume`	52	≤79	No	No	Yes	11	52	52	No	Yes	11	6.0