Function once

once<E extends Event>(
    target: EventTarget,
    type: string,
    opts?: boolean | AddEventListenerOptions,
): Promise<E>
Adds a listener to the given target, and returns a promise that resolves with the first event emitted of the given type.
Type Parameters
- E extends Event
Parameters
- target: EventTarget
  The target to add an event listener to.
- type: string
  The event type to listen for.
- Optionalopts: boolean | AddEventListenerOptions
  Options to pass to addEventListener.
Returns Promise<E>
A promise that resolves with the first event emitted of type.
- Defined in packages/utils/src/eventTargets.ts:10