"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[66049],{3905:(e,t,r)=>{r.d(t,{Zo:()=>u,kt:()=>m});var n=r(67294);function a(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function i(e,t){var r=Object.keys(e);if(Object.getOwnPropertySymbols){var n=Object.getOwnPropertySymbols(e);t&&(n=n.filter((function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable}))),r.push.apply(r,n)}return r}function p(e){for(var t=1;t=0||(a[r]=e[r]);return a}(e,t);if(Object.getOwnPropertySymbols){var i=Object.getOwnPropertySymbols(e);for(n=0;n=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(a[r]=e[r])}return a}var o=n.createContext({}),s=function(e){var t=n.useContext(o),r=t;return e&&(r="function"==typeof e?e(t):p(p({},t),e)),r},u=function(e){var t=s(e.components);return n.createElement(o.Provider,{value:t},e.children)},d={inlineCode:"code",wrapper:function(e){var t=e.children;return n.createElement(n.Fragment,{},t)}},c=n.forwardRef((function(e,t){var r=e.components,a=e.mdxType,i=e.originalType,o=e.parentName,u=l(e,["components","mdxType","originalType","parentName"]),c=s(r),m=a,v=c["".concat(o,".").concat(m)]||c[m]||d[m]||i;return r?n.createElement(v,p(p({ref:t},u),{},{components:r})):n.createElement(v,p({ref:t},u))}));function m(e,t){var r=arguments,a=t&&t.mdxType;if("string"==typeof e||a){var i=r.length,p=new Array(i);p[0]=c;var l={};for(var o in t)hasOwnProperty.call(t,o)&&(l[o]=t[o]);l.originalType=e,l.mdxType="string"==typeof e?e:a,p[1]=l;for(var s=2;s{r.r(t),r.d(t,{assets:()=>s,contentTitle:()=>l,default:()=>c,frontMatter:()=>p,metadata:()=>o,toc:()=>u});r(67294);var n=r(3905);function a(){return a=Object.assign||function(e){for(var t=1;t=0||(a[r]=e[r]);return a}(e,t);if(Object.getOwnPropertySymbols){var i=Object.getOwnPropertySymbols(e);for(n=0;n=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(a[r]=e[r])}return a}const p={sidebar_label:"EventEmitter.addListener"},l="EventEmitter.addListener() method",o={unversionedId:"api/puppeteer.eventemitter.addlistener",id:"version-21.3.2/api/puppeteer.eventemitter.addlistener",title:"EventEmitter.addListener() method",description:"Warning: This API is now obsolete.",source:"@site/versioned_docs/version-21.3.2/api/puppeteer.eventemitter.addlistener.md",sourceDirName:"api",slug:"/api/puppeteer.eventemitter.addlistener",permalink:"/api/puppeteer.eventemitter.addlistener",draft:!1,tags:[],version:"21.3.2",frontMatter:{sidebar_label:"EventEmitter.addListener"},sidebar:"api",previous:{title:"EventEmitter",permalink:"/api/puppeteer.eventemitter"},next:{title:"EventEmitter.emit",permalink:"/api/puppeteer.eventemitter.emit"}},s={},u=[{value:"Signature:",id:"signature",level:4},{value:"Parameters",id:"parameters",level:2}],d={toc:u};function c(e){var{components:t}=e,r=i(e,["components"]);return(0,n.kt)("wrapper",a({},d,r,{components:t,mdxType:"MDXLayout"}),(0,n.kt)("h1",a({},{id:"eventemitteraddlistener-method"}),"EventEmitter.addListener() method"),(0,n.kt)("blockquote",null,(0,n.kt)("p",{parentName:"blockquote"},"Warning: This API is now obsolete."),(0,n.kt)("p",{parentName:"blockquote"},"please use ",(0,n.kt)("a",a({parentName:"p"},{href:"/api/puppeteer.eventemitter.on"}),"EventEmitter.on()")," instead.")),(0,n.kt)("p",null,"Add an event listener."),(0,n.kt)("h4",a({},{id:"signature"}),"Signature:"),(0,n.kt)("pre",null,(0,n.kt)("code",a({parentName:"pre"},{className:"language-typescript"}),"class EventEmitter {\n addListener>(\n type: Key,\n handler: Handler[Key]>\n ): this;\n}\n")),(0,n.kt)("h2",a({},{id:"parameters"}),"Parameters"),(0,n.kt)("table",null,(0,n.kt)("thead",{parentName:"table"},(0,n.kt)("tr",{parentName:"thead"},(0,n.kt)("th",a({parentName:"tr"},{align:null}),"Parameter"),(0,n.kt)("th",a({parentName:"tr"},{align:null}),"Type"),(0,n.kt)("th",a({parentName:"tr"},{align:null}),"Description"))),(0,n.kt)("tbody",{parentName:"table"},(0,n.kt)("tr",{parentName:"tbody"},(0,n.kt)("td",a({parentName:"tr"},{align:null}),"type"),(0,n.kt)("td",a({parentName:"tr"},{align:null}),"Key"),(0,n.kt)("td",a({parentName:"tr"},{align:null}))),(0,n.kt)("tr",{parentName:"tbody"},(0,n.kt)("td",a({parentName:"tr"},{align:null}),"handler"),(0,n.kt)("td",a({parentName:"tr"},{align:null}),(0,n.kt)("a",a({parentName:"td"},{href:"/api/puppeteer.handler"}),"Handler"),"<",(0,n.kt)("a",a({parentName:"td"},{href:"/api/puppeteer.eventswithwildcard"}),"EventsWithWildcard"),"<","Events",">","[","Key","]",">"),(0,n.kt)("td",a({parentName:"tr"},{align:null}))))),(0,n.kt)("p",null,(0,n.kt)("strong",{parentName:"p"},"Returns:")),(0,n.kt)("p",null,"this"))}c.isMDXComponent=!0}}]);