once | /node/events.ts | std@0.75.0

Deno standard library

function once

import { once } from "https://deno.land/std@0.75.0/node/events.ts";

once(emitter: EventEmitter | EventTarget, name: string): Promise<any[]>

Creates a Promise that is fulfilled when the EventEmitter emits the given event or that is rejected when the EventEmitter emits 'error'. The Promise will resolve with an array of all the arguments emitted to the given event.

Parameters

emitter: EventEmitter | EventTarget

name: string

Returns

Promise<any[]>