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"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[34620],{54712:(e,r,s)=>{s.r(r),s.d(r,{assets:()=>o,contentTitle:()=>a,default:()=>p,frontMatter:()=>l,metadata:()=>i,toc:()=>d});var n=s(85893),t=s(11151);const l={sidebar_label:"WebWorker"},a="WebWorker class",i={id:"api/puppeteer.webworker",title:"WebWorker class",description:"This class represents a WebWorker.",source:"@site/versioned_docs/version-22.8.1/api/puppeteer.webworker.md",sourceDirName:"api",slug:"/api/puppeteer.webworker",permalink:"/api/puppeteer.webworker",draft:!1,unlisted:!1,tags:[],version:"22.8.1",frontMatter:{sidebar_label:"WebWorker"},sidebar:"api",previous:{title:"Page.workers",permalink:"/api/puppeteer.page.workers"},next:{title:"WebWorker.close",permalink:"/api/puppeteer.webworker.close"}},o={},d=[{value:"Signature:",id:"signature",level:4},{value:"Remarks",id:"remarks",level:2},{value:"Example",id:"example",level:2},{value:"Properties",id:"properties",level:2},{value:"Methods",id:"methods",level:2}];function c(e){const r={a:"a",code:"code",h1:"h1",h2:"h2",h4:"h4",p:"p",pre:"pre",strong:"strong",...(0,t.a)(),...e.components};return(0,n.jsxs)(n.Fragment,{children:[(0,n.jsx)(r.h1,{id:"webworker-class",children:"WebWorker class"}),"\n",(0,n.jsxs)(r.p,{children:["This class represents a ",(0,n.jsx)(r.a,{href:"https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API",children:"WebWorker"}),"."]}),"\n",(0,n.jsx)(r.h4,{id:"signature",children:"Signature:"}),"\n",(0,n.jsx)(r.pre,{children:(0,n.jsx)(r.code,{className:"language-typescript",children:"export declare abstract class WebWorker extends EventEmitter<Record<EventType, unknown>>\n"})}),"\n",(0,n.jsxs)(r.p,{children:[(0,n.jsx)(r.strong,{children:"Extends:"})," ",(0,n.jsx)(r.a,{href:"/api/puppeteer.eventemitter",children:"EventEmitter"}),"<Record<",(0,n.jsx)(r.a,{href:"/api/puppeteer.eventtype",children:"EventType"}),", unknown>>"]}),"\n",(0,n.jsx)(r.h2,{id:"remarks",children:"Remarks"}),"\n",(0,n.jsxs)(r.p,{children:["The events ",(0,n.jsx)(r.code,{children:"workercreated"})," and ",(0,n.jsx)(r.code,{children:"workerdestroyed"})," are emitted on the page object to signal the worker lifecycle."]}),"\n",(0,n.jsxs)(r.p,{children:["The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the ",(0,n.jsx)(r.code,{children:"WebWorker"})," class."]}),"\n",(0,n.jsx)(r.h2,{id:"example",children:"Example"}),"\n",(0,n.jsx)(r.pre,{children:(0,n.jsx)(r.code,{className:"language-ts",children:"page.on('workercreated', worker =>\n console.log('Worker created: ' + worker.url())\n);\npage.on('workerdestroyed', worker =>\n console.log('Worker destroyed: ' + worker.url())\n);\n\nconsole.log('Current workers:');\nfor (const worker of page.workers()) {\n console.log(' ' + worker.url());\n}\n"})}),"\n",(0,n.jsx)(r.h2,{id:"properties",children:"Properties"}),"\n",(0,n.jsxs)("table",{children:[(0,n.jsx)("thead",{children:(0,n.jsxs)("tr",{children:[(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Property"})}),(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Modifiers"})}),(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Type"})}),(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Description"})})]})}),(0,n.jsx)("tbody",{children:(0,n.jsxs)("tr",{children:[(0,n.jsx)("td",{children:(0,n.jsx)("span",{id:"client",children:"client"})}),(0,n.jsx)("td",{children:(0,n.jsx)(r.p,{children:(0,n.jsx)(r.code,{children:"readonly"})})}),(0,n.jsx)("td",{children:(0,n.jsx)(r.p,{children:(0,n.jsx)(r.a,{href:"/api/puppeteer.cdpsession",children:"CDPSession"})})}),(0,n.jsx)("td",{children:(0,n.jsx)(r.p,{children:"The CDP session client the WebWorker belongs to."})})]})})]}),"\n",(0,n.jsx)(r.h2,{id:"methods",children:"Methods"}),"\n",(0,n.jsxs)("table",{children:[(0,n.jsx)("thead",{children:(0,n.jsxs)("tr",{children:[(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Method"})}),(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Modifiers"})}),(0,n.jsx)("th",{children:(0,n.jsx)(r.p,{children:"Description"})})]})}),(0,n.js
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