MediaTrackSupportedConstraints.volume

Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

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.innerHTML = "Supported!";
} else {
  result.innerHTML = "Not supported!";
}

Result

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
volume
DeprecatedNon-standard
Chrome Full support 52Edge Full support ≤79Firefox No support NoIE No support NoOpera Full support YesSafari ? WebView Android Full support 52Chrome Android Full support 52Firefox Android No support NoOpera Android Full support YesSafari iOS ? Samsung Internet Android Full support 6.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See also