puppeteer/assets/js/ec55498c.55a68824.js

"use strict";(self.webpackChunkwebsite=self.webpackChunkwebsite||[]).push([[9834],{3905:(e,t,n)=>{n.d(t,{Zo:()=>u,kt:()=>m});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 o(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 i(e){for(var t=1;t<arguments.length;t++){var n=null!=arguments[t]?arguments[t]:{};t%2?o(Object(n),!0).forEach((function(t){a(e,t,n[t])})):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(n)):o(Object(n)).forEach((function(t){Object.defineProperty(e,t,Object.getOwnPropertyDescriptor(n,t))}))}return e}function p(e,t){if(null==e)return{};var n,r,a=function(e,t){if(null==e)return{};var n,r,a={},o=Object.keys(e);for(r=0;r<o.length;r++)n=o[r],t.indexOf(n)>=0||(a[n]=e[n]);return a}(e,t);if(Object.getOwnPropertySymbols){var o=Object.getOwnPropertySymbols(e);for(r=0;r<o.length;r++)n=o[r],t.indexOf(n)>=0||Object.prototype.propertyIsEnumerable.call(e,n)&&(a[n]=e[n])}return a}var l=r.createContext({}),s=function(e){var t=r.useContext(l),n=t;return e&&(n="function"==typeof e?e(t):i(i({},t),e)),n},u=function(e){var t=s(e.components);return r.createElement(l.Provider,{value:t},e.children)},c={inlineCode:"code",wrapper:function(e){var t=e.children;return r.createElement(r.Fragment,{},t)}},d=r.forwardRef((function(e,t){var n=e.components,a=e.mdxType,o=e.originalType,l=e.parentName,u=p(e,["components","mdxType","originalType","parentName"]),d=s(n),m=a,f=d["".concat(l,".").concat(m)]||d[m]||c[m]||o;return n?r.createElement(f,i(i({ref:t},u),{},{components:n})):r.createElement(f,i({ref:t},u))}));function m(e,t){var n=arguments,a=t&&t.mdxType;if("string"==typeof e||a){var o=n.length,i=new Array(o);i[0]=d;var p={};for(var l in t)hasOwnProperty.call(t,l)&&(p[l]=t[l]);p.originalType=e,p.mdxType="string"==typeof e?e:a,i[1]=p;for(var s=2;s<o;s++)i[s]=n[s];return r.createElement.apply(null,i)}return r.createElement.apply(null,n)}d.displayName="MDXCreateElement"},75099:(e,t,n)=>{n.r(t),n.d(t,{assets:()=>s,contentTitle:()=>p,default:()=>d,frontMatter:()=>i,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 o(e,t){if(null==e)return{};var n,r,a=function(e,t){if(null==e)return{};var n,r,a={},o=Object.keys(e);for(r=0;r<o.length;r++)n=o[r],t.indexOf(n)>=0||(a[n]=e[n]);return a}(e,t);if(Object.getOwnPropertySymbols){var o=Object.getOwnPropertySymbols(e);for(r=0;r<o.length;r++)n=o[r],t.indexOf(n)>=0||Object.prototype.propertyIsEnumerable.call(e,n)&&(a[n]=e[n])}return a}const i={sidebar_label:"Page.emulateNetworkConditions"},p="Page.emulateNetworkConditions() method",l={unversionedId:"api/puppeteer.page.emulatenetworkconditions",id:"version-21.4.1/api/puppeteer.page.emulatenetworkconditions",title:"Page.emulateNetworkConditions() method",description:"This does not affect WebSockets and WebRTC PeerConnections (see https://crbug.com/563644). To set the page offline, you can use Page.setOfflineMode().",source:"@site/versioned_docs/version-21.4.1/api/puppeteer.page.emulatenetworkconditions.md",sourceDirName:"api",slug:"/api/puppeteer.page.emulatenetworkconditions",permalink:"/api/puppeteer.page.emulatenetworkconditions",draft:!1,tags:[],version:"21.4.1",frontMatter:{sidebar_label:"Page.emulateNetworkConditions"},sidebar:"api",previous:{title:"Page.emulateMediaType",permalink:"/api/puppeteer.page.emulatemediatype"},next:{title:"Page.emulateTimezone",permalink:"/api/puppeteer.page.emulatetimezone"}},s={},u=[{value:"Signature:",id:"signature",level:4},{value:"Parameters",id:"parameters",level:2},{value:"Example",id:"example",level:2}],c={toc:u};function d(e){var{components:t}=e,n=o(e,["components"]);return(0,r.kt)("wrapper",a({},c,n,{components:t,mdxType:"MDXLayout"}),(0,r.kt)("h1",a({},{id:"pageemulatenetworkconditions-method"}),"Page.emulateNetworkConditions() method"),(0,r.kt)("p",null,"This does not affect WebSockets and WebRTC PeerConnections (see ",(0,r.kt)("a",a({parentName:"p"},{href:"https://crbug.com/563644"}),"https://crbug.com/563644"),"). To set the page offline, you can use ",(0,r.kt)("a",a({parentName:"p"},{href:"/api/puppeteer.page.setofflinemode"}),"Page.setOfflineMode()"),"."),(0,r.kt)("p",null,"A list of predefined network conditions can be used by importing ",(0,r.kt)("a",a({parentName:"p"},{href:"/api/puppeteer.predefinednetworkconditions"}),"PredefinedNetworkConditions"),"."),(0,r.kt)("h4",a({},{id:"signature"}),"Signature:"),(0,r.kt)("pre",null,(0,r.kt)("code",a({parentName:"pre"},{className:"language-typescript"}),"class Page {\n  emulateNetworkConditions(\n    networkConditions: NetworkConditions | null\n  ): Promise<void>;\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}),"networkConditions"),(0,r.kt)("td",a({parentName:"tr"},{align:null}),(0,r.kt)("a",a({parentName:"td"},{href:"/api/puppeteer.networkconditions"}),"NetworkConditions")," ","|"," null"),(0,r.kt)("td",a({parentName:"tr"},{align:null}),"Passing ",(0,r.kt)("code",null,"null")," disables network condition emulation.")))),(0,r.kt)("p",null,(0,r.kt)("strong",{parentName:"p"},"Returns:")),(0,r.kt)("p",null,"Promise","<","void",">"),(0,r.kt)("h2",a({},{id:"example"}),"Example"),(0,r.kt)("pre",null,(0,r.kt)("code",a({parentName:"pre"},{className:"language-ts"}),"import {PredefinedNetworkConditions} from 'puppeteer';\nconst slow3G = PredefinedNetworkConditions['Slow 3G'];\n\n(async () => {\n  const browser = await puppeteer.launch();\n  const page = await browser.newPage();\n  await page.emulateNetworkConditions(slow3G);\n  await page.goto('https://www.google.com');\n  // other actions...\n  await browser.close();\n})();\n")))}d.isMDXComponent=!0}}]);