Web/API/WakeLockSentinel/type

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Secure contextThis feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The read-only type property of the WakeLockSentinel interface returns a String representation of the currently acquired WakeLockSentinel type.

Syntax

var type = sentinel.type;

Value

A String representation of the currently acquired wake lock type.

type Read only

Return values are:

'screen'

• A screen wake lock. Prevents devices from dimming or locking the screen.

Examples

This example shows an asynchronous function that acquires a WakeLockSentinel, then logs the type to the console.

const requestWakeLock = async () => {
  wakeLock = await navigator.wakeLock.request('screen');
  console.log(wakeLock.type); // logs 'screen'
};

requestWakeLock();

Specifications

Specification	Status	Comment
Screen Wake Lock APIThe definition of 'WakeLockType' in that specification.	Editor's Draft	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
type Experimental'	Chrome Full support 84	Edge Full support 84	Firefox No support No	IE No support No	Opera Full support Yes	Safari No support No	WebView Android Full support 84	Chrome Android Full support 84	Firefox Android No support No	Opera Android Full support Yes	Safari iOS No support No	Samsung Internet Android No support No

Legend

Full support  

Full support

No support  

No support

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

WakeLockSentinel.type by Mozilla Contributors is licensed under CC-BY-SA 2.5.