WakeLockSentinel: type property
Baseline 2025Newly available
Since March 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The type read-only property of the WakeLockSentinel interface returns a string representation of the currently acquired WakeLockSentinel type.
Value
A string representation of the currently acquired wake lock type.
Currently, the value is always screen, which represents a screen wake lock.
It 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.
js
const requestWakeLock = async () => {
wakeLock = await navigator.wakeLock.request("screen");
console.log(wakeLock.type); // logs 'screen'
};
requestWakeLock();
Specifications
| Specification |
|---|
| Screen Wake Lock API # the-type-attribute |