The Window.cancelIdleCallback() enables you to cancel a callback previously scheduled with Window.requestIdleCallback.

API DOM DOM Reference JavaScript timers Method Reference

API DOM DOM Reference Intermediate JavaScript timers Method NeedsMobileBrowserCompatibility

The window.requestIdleCallback() method queues a function to be called during a browser's idle periods. This enables developers to perform background and low priority work on the main event loop, without impacting latency-critical events such as animation and input response. Functions are generally called in first-in-first-out order unless the function's timeout is reached before the browser calls it.

API DOM DOM Reference JavaScript timers Method Reference

Cancels a timed, repeating action which was previously established by a call to setInterval().

API clearInterval HTML DOM JavaScript timers Method Reference WindowTimers

Repeatedly calls a function or executes a code snippet, with a fixed time delay between each call. Returns an intervalID.

API DOM Gecko Intervals JavaScript timers MakeBrowserAgnostic Method NeedsMarkupWork setInterval Timers WindowTimers

Sets a timer which executes a function or specified piece of code once after the timer expires.

API HTML DOM Intervals JavaScript timers MakeBrowserAgnostic Method NeedsCompatTable NeedsMarkupWork NeedsUpdate Reference setTimeout Timers WindowTimers