puppeteer/assets/js/d11012cd.3a172bf4.js

/*! For license information please see d11012cd.3a172bf4.js.LICENSE.txt */
"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[14776],{27929:(e,t,r)=>{r.r(t),r.d(t,{assets:()=>c,contentTitle:()=>i,default:()=>d,frontMatter:()=>a,metadata:()=>l,toc:()=>o});var n=r(85893),s=r(11151);const a={sidebar_label:"Frame.$eval"},i="Frame.$eval() method",l={id:"api/puppeteer.frame._eval",title:"Frame.$eval() method",description:"Runs the given function on the first element matching the given selector in the frame.",source:"@site/versioned_docs/version-22.10.1/api/puppeteer.frame._eval.md",sourceDirName:"api",slug:"/api/puppeteer.frame._eval",permalink:"/api/puppeteer.frame._eval",draft:!1,unlisted:!1,tags:[],version:"22.10.1",frontMatter:{sidebar_label:"Frame.$eval"},sidebar:"api",previous:{title:"Frame.$$eval",permalink:"/api/puppeteer.frame.__eval"},next:{title:"Frame.addScriptTag",permalink:"/api/puppeteer.frame.addscripttag"}},c={},o=[{value:"Signature:",id:"signature",level:4},{value:"Parameters",id:"parameters",level:2},{value:"Example",id:"example",level:2}];function p(e){const t={a:"a",code:"code",h1:"h1",h2:"h2",h4:"h4",p:"p",pre:"pre",strong:"strong",...(0,s.a)(),...e.components};return(0,n.jsxs)(n.Fragment,{children:[(0,n.jsx)(t.h1,{id:"frameeval-method",children:"Frame.$eval() method"}),"\n",(0,n.jsx)(t.p,{children:"Runs the given function on the first element matching the given selector in the frame."}),"\n",(0,n.jsx)(t.p,{children:"If the given function returns a promise, then this method will wait till the promise resolves."}),"\n",(0,n.jsx)(t.h4,{id:"signature",children:"Signature:"}),"\n",(0,n.jsx)(t.pre,{children:(0,n.jsx)(t.code,{className:"language-typescript",children:"class Frame {\n  $eval<\n    Selector extends string,\n    Params extends unknown[],\n    Func extends EvaluateFuncWith<NodeFor<Selector>, Params> = EvaluateFuncWith<\n      NodeFor<Selector>,\n      Params\n    >,\n  >(\n    selector: Selector,\n    pageFunction: string | Func,\n    ...args: Params\n  ): Promise<Awaited<ReturnType<Func>>>;\n}\n"})}),"\n",(0,n.jsx)(t.h2,{id:"parameters",children:"Parameters"}),"\n",(0,n.jsxs)("table",{children:[(0,n.jsx)("thead",{children:(0,n.jsxs)("tr",{children:[(0,n.jsx)("th",{children:(0,n.jsx)(t.p,{children:"Parameter"})}),(0,n.jsx)("th",{children:(0,n.jsx)(t.p,{children:"Type"})}),(0,n.jsx)("th",{children:(0,n.jsx)(t.p,{children:"Description"})})]})}),(0,n.jsxs)("tbody",{children:[(0,n.jsxs)("tr",{children:[(0,n.jsx)("td",{children:(0,n.jsx)(t.p,{children:"selector"})}),(0,n.jsx)("td",{children:(0,n.jsx)(t.p,{children:"Selector"})}),(0,n.jsx)("td",{children:(0,n.jsxs)(t.p,{children:[(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#query-selectors",children:"selector"})," to query page for. ",(0,n.jsx)(t.a,{href:"https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors",children:"CSS selectors"})," can be passed as-is and a ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#p-selectors",children:"Puppeteer-specific seletor syntax"})," allows quering by ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#text-selectors--p-text",children:"text"}),", ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#aria-selectors--p-aria",children:"a11y role and name"}),", and ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#xpath-selectors--p-xpath",children:"xpath"})," and ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#-and--combinators",children:"combining these queries across shadow roots"}),". Alternatively, you can specify a selector type using a prefix ",(0,n.jsx)(t.a,{href:"https://pptr.dev/guides/page-interactions#built-in-selectors",children:"prefix"}),"."]})})]}),(0,n.jsxs)("tr",{children:[(0,n.jsx)("td",{children:(0,n.jsx)(t.p,{children:"pageFunction"})}),(0,n.jsx)("td",{children:(0,n.jsx)(t.p,{children:"string | Func"})}),(0,n.jsx)("td",{children:(0,n.jsx)(t.p,{children:"The function to be evaluated in the frame's context. The first element matching the selector will be passed to the function as its first argument."})})]}),(0,n.jsxs)("tr",{children:[(0,n.jsx)("td",{chi