"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[14295],{3905:(e,t,r)=>{r.d(t,{Zo:()=>c,kt:()=>y});var a=r(67294);function n(e,t,r){return t in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r,e}function p(e,t){var r=Object.keys(e);if(Object.getOwnPropertySymbols){var a=Object.getOwnPropertySymbols(e);t&&(a=a.filter((function(t){return Object.getOwnPropertyDescriptor(e,t).enumerable}))),r.push.apply(r,a)}return r}function o(e){for(var t=1;t<arguments.length;t++){var r=null!=arguments[t]?arguments[t]:{};t%2?p(Object(r),!0).forEach((function(t){n(e,t,r[t])})):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(r)):p(Object(r)).forEach((function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(r,t))}))}return e}function l(e,t){if(null==e)return{};var r,a,n=function(e,t){if(null==e)return{};var r,a,n={},p=Object.keys(e);for(a=0;a<p.length;a++)r=p[a],t.indexOf(r)>=0||(n[r]=e[r]);return n}(e,t);if(Object.getOwnPropertySymbols){var p=Object.getOwnPropertySymbols(e);for(a=0;a<p.length;a++)r=p[a],t.indexOf(r)>=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(n[r]=e[r])}return n}var i=a.createContext({}),s=function(e){var t=a.useContext(i),r=t;return e&&(r="function"==typeof e?e(t):o(o({},t),e)),r},c=function(e){var t=s(e.components);return a.createElement(i.Provider,{value:t},e.children)},u={inlineCode:"code",wrapper:function(e){var t=e.children;return a.createElement(a.Fragment,{},t)}},m=a.forwardRef((function(e,t){var r=e.components,n=e.mdxType,p=e.originalType,i=e.parentName,c=l(e,["components","mdxType","originalType","parentName"]),m=s(r),y=n,d=m["".concat(i,".").concat(y)]||m[y]||u[y]||p;return r?a.createElement(d,o(o({ref:t},c),{},{components:r})):a.createElement(d,o({ref:t},c))}));function y(e,t){var r=arguments,n=t&&t.mdxType;if("string"==typeof e||n){var p=r.length,o=new Array(p);o[0]=m;var l={};for(var i in t)hasOwnProperty.call(t,i)&&(l[i]=t[i]);l.originalType=e,l.mdxType="string"==typeof e?e:n,o[1]=l;for(var s=2;s<p;s++)o[s]=r[s];return a.createElement.apply(null,o)}return a.createElement.apply(null,r)}m.displayName="MDXCreateElement"},29289:(e,t,r)=>{r.r(t),r.d(t,{assets:()=>s,contentTitle:()=>l,default:()=>m,frontMatter:()=>o,metadata:()=>i,toc:()=>c});r(67294);var a=r(3905);function n(){return n=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var a in r)Object.prototype.hasOwnProperty.call(r,a)&&(e[a]=r[a])}return e},n.apply(this,arguments)}function p(e,t){if(null==e)return{};var r,a,n=function(e,t){if(null==e)return{};var r,a,n={},p=Object.keys(e);for(a=0;a<p.length;a++)r=p[a],t.indexOf(r)>=0||(n[r]=e[r]);return n}(e,t);if(Object.getOwnPropertySymbols){var p=Object.getOwnPropertySymbols(e);for(a=0;a<p.length;a++)r=p[a],t.indexOf(r)>=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(n[r]=e[r])}return n}const o={sidebar_label:"Page.queryObjects"},l="Page.queryObjects() method",i={unversionedId:"api/puppeteer.page.queryobjects",id:"version-19.11.1/api/puppeteer.page.queryobjects",title:"Page.queryObjects() method",description:"This method iterates the JavaScript heap and finds all objects with the given prototype.",source:"@site/versioned_docs/version-19.11.1/api/puppeteer.page.queryobjects.md",sourceDirName:"api",slug:"/api/puppeteer.page.queryobjects",permalink:"/api/puppeteer.page.queryobjects",draft:!1,tags:[],version:"19.11.1",frontMatter:{sidebar_label:"Page.queryObjects"},sidebar:"api",previous:{title:"Page.pdf",permalink:"/api/puppeteer.page.pdf"},next:{title:"Page.reload",permalink:"/api/puppeteer.page.reload"}},s={},c=[{value:"Signature:",id:"signature",level:4},{value:"Parameters",id:"parameters",level:2},{value:"Example",id:"example",level:2}],u={toc:c};function m(e){var{components:t}=e,r=p(e,["components"]);return(0,a.kt)("wrapper",n({},u,r,{components:t,mdxType:"MDXLayout"}),(0,a.kt)("h1",n({},{id:"pagequeryobjects-method"}),"Page.queryObjects() method"),(0,a.kt)("p",null,"This method iterates the JavaScript heap and finds all objects with the given prototype."),(0,a.kt)("h4",n({},{id:"signature"}),"Signature:"),(0,a.kt)("pre",null,(0,a.kt)("code",n({parentName:"pre"},{className:"language-typescript"}),"class Page {\n  queryObjects<Prototype>(\n    prototypeHandle: JSHandle<Prototype>\n  ): Promise<JSHandle<Prototype[]>>;\n}\n")),(0,a.kt)("h2",n({},{id:"parameters"}),"Parameters"),(0,a.kt)("table",null,(0,a.kt)("thead",{parentName:"table"},(0,a.kt)("tr",{parentName:"thead"},(0,a.kt)("th",n({parentName:"tr"},{align:null}),"Parameter"),(0,a.kt)("th",n({parentName:"tr"},{align:null}),"Type"),(0,a.kt)("th",n({parentName:"tr"},{align:null}),"Description"))),(0,a.kt)("tbody",{parentName:"table"},(0,a.kt)("tr",{parentName:"tbody"},(0,a.kt)("td",n({parentName:"tr"},{align:null}),"prototypeHandle"),(0,a.kt)("td",n({parentName:"tr"},{align:null}),(0,a.kt)("a",n({parentName:"td"},{href:"/api/puppeteer.jshandle"}),"JSHandle"),"<","Prototype",">"),(0,a.kt)("td",n({parentName:"tr"},{align:null}),"a handle to the object prototype.")))),(0,a.kt)("p",null,(0,a.kt)("strong",{parentName:"p"},"Returns:")),(0,a.kt)("p",null,"Promise","<",(0,a.kt)("a",n({parentName:"p"},{href:"/api/puppeteer.jshandle"}),"JSHandle"),"<","Prototype","[","]",">",">"),(0,a.kt)("p",null,"Promise which resolves to a handle to an array of objects with this prototype."),(0,a.kt)("h2",n({},{id:"example"}),"Example"),(0,a.kt)("pre",null,(0,a.kt)("code",n({parentName:"pre"},{className:"language-ts"}),"// Create a Map object\nawait page.evaluate(() => (window.map = new Map()));\n// Get a handle to the Map object prototype\nconst mapPrototype = await page.evaluateHandle(() => Map.prototype);\n// Query all map instances into an array\nconst mapInstances = await page.queryObjects(mapPrototype);\n// Count amount of map objects in heap\nconst count = await page.evaluate(maps => maps.length, mapInstances);\nawait mapInstances.dispose();\nawait mapPrototype.dispose();\n")))}m.isMDXComponent=!0}}]);