(async () => ) to run your Puppeteer scripts in Firefox Nightly, without any additional custom patches. ```jsconst puppeteer = require('puppeteer') You create an instanceof Browser, open pages, and then manipulate them with Puppeteer's API.Įxample - navigating to and saving a screenshot as example.png: Puppeteer will be familiar to people using other browser testing frameworks. All examples below use async/await which is only supported in Node v7.6.0 or greater. Starting from v3.0.0 Puppeteer starts to rely on Node 10.18.1+. Note: Prior to v1.18.1, Puppeteer required at least Node v6.4.0. Puppeteer follows the latest maintenance LTS version of Node. Be sure that the version of puppeteer-core you install is compatible with thebrowser you intend to connect to. Puppeteer-core is intended to be a lightweight version of Puppeteer for launching an existing browser installation or for connecting to a remote one. ```bashnpm i puppeteer-core or 'yarn add puppeteer-core' Since version 1.7.0 we publish the puppeteer-core package,a version of Puppeteer that doesn't download any browser by default. To skip the download, download into another path, or download a different browser, see Environment variables. Note: When you install Puppeteer, it downloads a recent version of Chromium (~170MB Mac, ~282MB Linux, ~280MB Win) that is guaranteed to work with the API. ```bashnpm i puppeteer or 'yarn add puppeteer' Capture a timeline trace of your site to help diagnose performance issues.Run your tests directly in the latest version of Chrome using the latest JavaScript and browser features. Create an up-to-date, automated testing environment.Automate form submission, UI testing, keyboard input, etc.

Crawl a SPA (Single-Page Application) and generate pre-rendered content (i.e.Generate screenshots and PDFs of pages.Most things that you can do manually in the browser can be done using Puppeteer! Here are a few examples to get you started: Puppeteer runs headless by default, but can be configured to run full (non-headless) Chrome or Chromium. Puppeteer is a Node library which provides a high-level API to control Chrome or Chromium over the DevTools Protocol. API | FAQ | Contributing | Troubleshooting

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