Throttle event

A "throttled event" executes its handler after a configured waiting time over a time span. This event type is similar to the debounced event, where the major difference is that a throttled event executes its listeners multiple times.

To construct the event listener, the module TYPO3/CMS/Core/Event/ThrottleEvent must be imported. The constructor accepts the following arguments:

  • eventName (string) - the event to listen on
  • callback (function) - the executed event listener when the event is triggered
  • limit (number) - the amount of milliseconds to wait until the event listener is executed again
new ThrottleEvent('mousewheel', function (e) {
  console.log('Executed every 50ms during the overall event time span');
}, 50).bindTo(document.body);