EventEmitter | /node/events.ts | std@0.114.0

Module

std/node/events.ts>EventEmitter#once

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denoland/deno_std

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method EventEmitter.prototype.once

import { EventEmitter } from "https://deno.land/std@0.114.0/node/events.ts";

once(eventName: string | symbol, listener: GenericFunction): this

Adds a one-time listener function for the event named eventName. The next time eventName is triggered, this listener is removed and then invoked.

Parameters

eventName: string | symbol

listener: GenericFunction

Returns

this