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method EventEmitter.prototype.once
import { EventEmitter } from "https://deno.land/x/puppeteer@14.1.1/vendor/puppeteer-core/puppeteer/common/EventEmitter.d.ts";

Like on but the listener will only be fired once and then it will be removed.

Parameters

event: EventType
  • the event you'd like to listen to
handler: Handler
  • the handler function to run when the event occurs

Returns

this to enable you to chain method calls.