WakeLockSentinel.type

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

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.

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();