"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[58457],{3905:(e,t,r)=>{r.d(t,{Zo:()=>s,kt:()=>v});varn=r(67294);functiona(e,t,r){returntine?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}functioni(e,t){varr=Object.keys(e);if(Object.getOwnPropertySymbols){varn=Object.getOwnPropertySymbols(e);t&&(n=n.filter((function(t){returnObject.getOwnPropertyDescriptor(e,t).enumerable}))),r.push.apply(r,n)}returnr}functionp(e){for(vart=1;t<arguments.length;t++){varr=null!=arguments[t]?arguments[t]:{};t%2?i(Object(r),!0).forEach((function(t){a(e,t,r[t])})):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(r)):i(Object(r)).forEach((function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(r,t))}))}returne}functiono(e,t){if(null==e)return{};varr,n,a=function(e,t){if(null==e)return{};varr,n,a={},i=Object.keys(e);for(n=0;n<i.length;n++)r=i[n],t.indexOf(r)>=0||(a[r]=e[r]);returna}(e,t);if(Object.getOwnPropertySymbols){vari=Object.getOwnPropertySymbols(e);for(n=0;n<i.length;n++)r=i[n],t.indexOf(r)>=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(a[r]=e[r])}returna}varl=n.createContext({}),u=function(e){vart=n.useContext(l),r=t;returne&&(r="function"==typeofe?e(t):p(p({},t),e)),r},s=function(e){vart=u(e.components);returnn.createElement(l.Provider,{value:t},e.children)},c={inlineCode:"code",wrapper:function(e){vart=e.children;returnn.createElement(n.Fragment,{},t)}},m=n.forwardRef((function(e,t){varr=e.components,a=e.mdxType,i=e.originalType,l=e.parentName,s=o(e,["components","mdxType","originalType","parentName"]),m=u(r),v=a,f=m["".concat(l,".").concat(v)]||m[v]||c[v]||i;returnr?n.createElement(f,p(p({ref:t},s),{},{components:r})):n.createElement(f,p({ref:t},s))}));functionv(e,t){varr=arguments,a=t&&t.mdxType;if("string"==typeofe||a){vari=r.length,p=newArray(i);p[0]=m;varo={};for(varlint)hasOwnProperty.call(t,l)&&(o[l]=t[l]);o.originalType=e,o.mdxType="string"==typeofe?e:a,p[1]=o;for(varu=2;u<i;u++)p[u]=r[u];returnn.createElement.apply(null,p)}returnn.createElement.apply(null,r)}m.displayName="MDXCreateElement"},30310:(e,t,r)=>{r.r(t),r.d(t,{assets:()=>l,contentTitle:()=>p,default:()=>c,frontMatter:()=>i,metadata:()=>o,toc:()=>u});varn=r(87462),a=(r(67294),r(3905));consti={sidebar_label:"EventEmitter.listenerCount"},p="EventEmitter.listenerCount() method",o={unversionedId:"api/puppeteer.eventemitter.listenercount",id:"version-17.1.1/api/puppeteer.eventemitter.listenercount",title:"EventEmitter.listenerCount() method",description:"Gets the number of listeners for a given event.",source:"@site/versioned_docs/version-17.1.1/api/puppeteer.eventemitter.listenercount.md",sourceDirName:"api",slug:"/api/puppeteer.eventemitter.listenercount",permalink:"/api/puppeteer.eventemitter.listenercount",draft:!1,tags:[],version:"17.1.1",frontMatter:{sidebar_label:"EventEmitter.listenerCount"},sidebar:"sidebar",previous:{title:"EventEmitter.emit",permalink:"/api/puppeteer.eventemitter.emit"},next:{title:"EventEmitter",permalink:"/api/puppeteer.eventemitter"}},l={},u=[{value:"Parameters",id:"parameters",level:2}],s={toc:u};functionc(e){let{components:t,...r}=e;return(0,a.kt)("wrapper",(0,n.Z)({},s,r,{components:t,mdxType:"MDXLayout"}),(0,a.kt)("h1",{id:"eventemitterlistenercount-method"},"EventEmitter.listenerCount() method"),(0,a.kt)("p",null,"Gets the number of listeners for a given event."),(0,a.kt)("p",null,(0,a.kt)("strong",{parentName:"p"},"Signature:")),(0,a.kt)("pre",null,(0,a.kt)("code",{parentName:"pre",className:"language-typescript"},"class EventEmitter {\n listenerCount(event: EventType): number;\n}\n")),(0,a.kt)("h2",{id:"parameters"},"Parameters"),(0,a.kt)("table",null,(0,a.kt)("thead",{parentName:"table"},(0,a.kt)("tr",{parentName:"thead"},(0,a.kt)("th",{parentName:"tr",align:null},"Parameter"),(0,a.kt)("th",{parentName:"tr",align:null},"Type"),(0,a.kt)("th",{parentName:"tr",align:null},"Description"))),(0,a.kt)("tbody",{parentName:"table"},(0,a.kt)("tr",{parentName:"tbody