requestIdleCallback()

The requestIdleCallback() API queues a function that runs in idle browser time, either at the end of a frame or when the user is inactive. Also known as the background tasks API.

Baseline Status: This feature is currently Limited and is missing in at least one major browser engine.

Desktop Browser Engine Support

Google Chrome

47

Supported

Mozilla Firefox

55

Supported

Apple Safari

—

Unsupported

Microsoft Edge

79

Supported

Mobile Browser Engine Support

Chrome Android

47

Firefox Android

55

Safari iOS

—

Specifications and References

Specification ↗ Can I Use (requestidlecallback) ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.IdleDeadline ↗ api.IdleDeadline.didTimeout ↗ api.IdleDeadline.timeRemaining ↗ api.Window.cancelIdleCallback ↗ api.Window.requestIdleCallback ↗