addOnceListener #

Adds a one-time listener function to an event.
The next time the event is triggered, this listener is removed and then invoked.
Whenever an event is triggered, listener functions are called in the order they were registered.

Arguments #

addOnceListener(eventName, callback);

Argument	Type	Description
`eventName`	string	The name of the event
`callback`	function	Function to call when the event is triggered

Return #

The KuzzleEventEmitter instance.

Usage #

const eventEmitter = new KuzzleEventEmitter();
eventEmitter.addOnceListener(
  'myEvent',
  () => console.log('Caught event "myEvent"!'));
// Prints: Caught event "myEvent"!
eventEmitter.emit('myEvent');
// Prints nothing: the event has since been removed
eventEmitter.emit('myEvent');

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