"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[26167],{3905:(e,t,n)=>{n.d(t,{Zo:()=>u,kt:()=>d});var r=n(67294);function a(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function p(e,t){var n=Object.keys(e);if(Object.getOwnPropertySymbols){var r=Object.getOwnPropertySymbols(e);t&&(r=r.filter((function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable}))),n.push.apply(n,r)}return n}function o(e){for(var t=1;t<arguments.length;t++){var n=null!=arguments[t]?arguments[t]:{};t%2?p(Object(n),!0).forEach((function(t){a(e,t,n[t])})):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(n)):p(Object(n)).forEach((function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(n,t))}))}return e}function i(e,t){if(null==e)return{};var n,r,a=function(e,t){if(null==e)return{};var n,r,a={},p=Object.keys(e);for(r=0;r<p.length;r++)n=p[r],t.indexOf(n)>=0||(a[n]=e[n]);return a}(e,t);if(Object.getOwnPropertySymbols){var p=Object.getOwnPropertySymbols(e);for(r=0;r<p.length;r++)n=p[r],t.indexOf(n)>=0||Object.prototype.propertyIsEnumerable.call(e,n)&&(a[n]=e[n])}return a}var l=r.createContext({}),c=function(e){var t=r.useContext(l),n=t;return e&&(n="function"==typeof e?e(t):o(o({},t),e)),n},u=function(e){var t=c(e.components);return r.createElement(l.Provider,{value:t},e.children)},s={inlineCode:"code",wrapper:function(e){var t=e.children;return r.createElement(r.Fragment,{},t)}},m=r.forwardRef((function(e,t){var n=e.components,a=e.mdxType,p=e.originalType,l=e.parentName,u=i(e,["components","mdxType","originalType","parentName"]),m=c(n),d=a,f=m["".concat(l,".").concat(d)]||m[d]||s[d]||p;return n?r.createElement(f,o(o({ref:t},u),{},{components:n})):r.createElement(f,o({ref:t},u))}));function d(e,t){var n=arguments,a=t&&t.mdxType;if("string"==typeof e||a){var p=n.length,o=new Array(p);o[0]=m;var i={};for(var l in t)hasOwnProperty.call(t,l)&&(i[l]=t[l]);i.originalType=e,i.mdxType="string"==typeof e?e:a,o[1]=i;for(var c=2;c<p;c++)o[c]=n[c];return r.createElement.apply(null,o)}return r.createElement.apply(null,n)}m.displayName="MDXCreateElement"},27822:(e,t,n)=>{n.r(t),n.d(t,{assets:()=>c,contentTitle:()=>i,default:()=>m,frontMatter:()=>o,metadata:()=>l,toc:()=>u});n(67294);var r=n(3905);function a(){return a=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var r in n)Object.prototype.hasOwnProperty.call(n,r)&&(e[r]=n[r])}return e},a.apply(this,arguments)}function p(e,t){if(null==e)return{};var n,r,a=function(e,t){if(null==e)return{};var n,r,a={},p=Object.keys(e);for(r=0;r<p.length;r++)n=p[r],t.indexOf(n)>=0||(a[n]=e[n]);return a}(e,t);if(Object.getOwnPropertySymbols){var p=Object.getOwnPropertySymbols(e);for(r=0;r<p.length;r++)n=p[r],t.indexOf(n)>=0||Object.prototype.propertyIsEnumerable.call(e,n)&&(a[n]=e[n])}return a}const o={sidebar_label:"Page.on"},i="Page.on() method",l={unversionedId:"api/puppeteer.page.on",id:"version-19.1.0/api/puppeteer.page.on",title:"Page.on() method",description:"Listen to page events.",source:"@site/versioned_docs/version-19.1.0/api/puppeteer.page.on.md",sourceDirName:"api",slug:"/api/puppeteer.page.on",permalink:"/api/puppeteer.page.on",draft:!1,tags:[],version:"19.1.0",frontMatter:{sidebar_label:"Page.on"},sidebar:"sidebar",previous:{title:"Page.off",permalink:"/api/puppeteer.page.off"},next:{title:"Page.once",permalink:"/api/puppeteer.page.once"}},c={},u=[{value:"Parameters",id:"parameters",level:2}],s={toc:u};function m(e){var{components:t}=e,n=p(e,["components"]);return(0,r.kt)("wrapper",a({},s,n,{components:t,mdxType:"MDXLayout"}),(0,r.kt)("h1",a({},{id:"pageon-method"}),"Page.on() method"),(0,r.kt)("p",null,"Listen to page events."),(0,r.kt)("admonition",a({},{type:"note"}),(0,r.kt)("p",{parentName:"admonition"},"This method exists to define event typings and handle proper wireup of cooperative request interception. Actual event listening and dispatching is delegated to ",(0,r.kt)("a",a({parentName:"p"},{href:"/api/puppeteer.eventemitter"}),"EventEmitter"),".")),(0,r.kt)("p",null,(0,r.kt)("strong",{parentName:"p"},"Signature:")),(0,r.kt)("pre",null,(0,r.kt)("code",a({parentName:"pre"},{className:"language-typescript"}),"class Page {\n  on<K extends keyof PageEventObject>(\n    eventName: K,\n    handler: (event: PageEventObject[K]) => void\n  ): EventEmitter;\n}\n")),(0,r.kt)("h2",a({},{id:"parameters"}),"Parameters"),(0,r.kt)("table",null,(0,r.kt)("thead",{parentName:"table"},(0,r.kt)("tr",{parentName:"thead"},(0,r.kt)("th",a({parentName:"tr"},{align:null}),"Parameter"),(0,r.kt)("th",a({parentName:"tr"},{align:null}),"Type"),(0,r.kt)("th",a({parentName:"tr"},{align:null}),"Description"))),(0,r.kt)("tbody",{parentName:"table"},(0,r.kt)("tr",{parentName:"tbody"},(0,r.kt)("td",a({parentName:"tr"},{align:null}),"eventName"),(0,r.kt)("td",a({parentName:"tr"},{align:null}),"K"),(0,r.kt)("td",a({parentName:"tr"},{align:null}))),(0,r.kt)("tr",{parentName:"tbody"},(0,r.kt)("td",a({parentName:"tr"},{align:null}),"handler"),(0,r.kt)("td",a({parentName:"tr"},{align:null}),"(event: ",(0,r.kt)("a",a({parentName:"td"},{href:"/api/puppeteer.pageeventobject"}),"PageEventObject"),"[","K","]",") =",">"," void"),(0,r.kt)("td",a({parentName:"tr"},{align:null}))))),(0,r.kt)("p",null,(0,r.kt)("strong",{parentName:"p"},"Returns:")),(0,r.kt)("p",null,(0,r.kt)("a",a({parentName:"p"},{href:"/api/puppeteer.eventemitter"}),"EventEmitter")))}m.isMDXComponent=!0}}]);