--- id: intro title: "Getting Started" --- - [Installation](#installation) - [Usage](#usage) - [First script](#first-script) - [Record scripts](#record-scripts) - [TypeScript support](#typescript-support) - [System requirements](#system-requirements) ## Installation Use npm or Yarn to install Playwright in your Node.js project. See [system requirements](#system-requirements). ```sh npm i -D playwright ``` This single command downloads the Playwright NPM package and browser binaries for Chromium, Firefox and WebKit. To modify this behavior see [installation parameters](./installation.md). ## Usage Once installed, you can `require` Playwright in a Node.js script, and launch any of the 3 browsers (`chromium`, `firefox` and `webkit`). ```js const { chromium } = require('playwright'); (async () => { const browser = await chromium.launch(); // Create pages, interact with UI elements, assert values await browser.close(); })(); ``` Playwright APIs are asynchronous and return Promise objects. Our code examples use [the async/await pattern](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Async_await) to ease readability. The code is wrapped in an unnamed async arrow function which is invoking itself. ```js (async () => { // Start of async arrow function // Function code // ... })(); // End of the function and () to invoke itself ``` ## First script In our first script, we will navigate to `whatsmyuseragent.org` and take a screenshot in WebKit. ```js const { webkit } = require('playwright'); (async () => { const browser = await webkit.launch(); const page = await browser.newPage(); await page.goto('http://whatsmyuseragent.org/'); await page.screenshot({ path: `example.png` }); await browser.close(); })(); ``` By default, Playwright runs the browsers in headless mode. To see the browser UI, pass the `headless: false` flag while launching the browser. You can also use `slowMo` to slow down execution. ```js firefox.launch({ headless: false, slowMo: 50 }); ``` ## Record scripts [Playwright CLI](./cli.md) can be used to record user interactions and generate JavaScript code. ```sh npx playwright codegen wikipedia.org ``` ## TypeScript support Playwright includes built-in support for TypeScript. Type definitions will be imported automatically. It is recommended to use type-checking to improve the IDE experience. ### In JavaScript Add the following to the top of your JavaScript file to get type-checking in VS Code or WebStorm. ```js //@ts-check // ... ``` Alternatively, you can use JSDoc to set types for variables. ```js /** @type {import('playwright').Page} */ let page; ``` ### In TypeScript TypeScript support will work out-of-the-box. Types can also be imported explicitly. ```ts let page: import('playwright').Page; ``` ## System requirements Playwright requires Node.js version 10.17 or above. The browser binaries for Chromium, Firefox and WebKit work across the 3 platforms (Windows, macOS, Linux): * **Windows**: Works with Windows and Windows Subsystem for Linux (WSL). * **macOS**: Requires 10.14 or above. * **Linux**: Depending on your Linux distribution, you might need to install additional dependencies to run the browsers. * Firefox requires Ubuntu 18.04+ * For Ubuntu 18.04, the additional dependencies are defined in [our Docker image](https://github.com/microsoft/playwright/blob/master/utils/docker/Dockerfile.bionic), which is based on Ubuntu. [Playwright]: api/class-playwright.md "Playwright" [Browser]: api/class-browser.md "Browser" [BrowserContext]: api/class-browsercontext.md "BrowserContext" [Page]: api/class-page.md "Page" [Frame]: api/class-frame.md "Frame" [ElementHandle]: api/class-elementhandle.md "ElementHandle" [JSHandle]: api/class-jshandle.md "JSHandle" [ConsoleMessage]: api/class-consolemessage.md "ConsoleMessage" [Dialog]: api/class-dialog.md "Dialog" [Download]: api/class-download.md "Download" [Video]: api/class-video.md "Video" [FileChooser]: api/class-filechooser.md "FileChooser" [Keyboard]: api/class-keyboard.md "Keyboard" [Mouse]: api/class-mouse.md "Mouse" [Touchscreen]: api/class-touchscreen.md "Touchscreen" [Request]: api/class-request.md "Request" [Response]: api/class-response.md "Response" [Selectors]: api/class-selectors.md "Selectors" [Route]: api/class-route.md "Route" [WebSocket]: api/class-websocket.md "WebSocket" [TimeoutError]: api/class-timeouterror.md "TimeoutError" [Accessibility]: api/class-accessibility.md "Accessibility" [Worker]: api/class-worker.md "Worker" [BrowserServer]: api/class-browserserver.md "BrowserServer" [BrowserType]: api/class-browsertype.md "BrowserType" [Logger]: api/class-logger.md "Logger" [ChromiumBrowser]: api/class-chromiumbrowser.md "ChromiumBrowser" [ChromiumBrowserContext]: api/class-chromiumbrowsercontext.md "ChromiumBrowserContext" [ChromiumCoverage]: api/class-chromiumcoverage.md "ChromiumCoverage" [CDPSession]: api/class-cdpsession.md "CDPSession" [FirefoxBrowser]: api/class-firefoxbrowser.md "FirefoxBrowser" [WebKitBrowser]: api/class-webkitbrowser.md "WebKitBrowser" [Array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array" [Buffer]: https://nodejs.org/api/buffer.html#buffer_class_buffer "Buffer" [ChildProcess]: https://nodejs.org/api/child_process.html "ChildProcess" [Element]: https://developer.mozilla.org/en-US/docs/Web/API/element "Element" [Error]: https://nodejs.org/api/errors.html#errors_class_error "Error" [Evaluation Argument]: ./core-concepts.md#evaluationargument "Evaluation Argument" [Map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map "Map" [Object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object" [Promise]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise" [RegExp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp "RegExp" [Serializable]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable" [UIEvent.detail]: https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail "UIEvent.detail" [URL]: https://nodejs.org/api/url.html "URL" [USKeyboardLayout]: ../src/usKeyboardLayout.ts "USKeyboardLayout" [UnixTime]: https://en.wikipedia.org/wiki/Unix_time "Unix Time" [boolean]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type "Boolean" [function]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function" [iterator]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols "Iterator" [null]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/null "null" [number]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number" [origin]: https://developer.mozilla.org/en-US/docs/Glossary/Origin "Origin" [selector]: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors "selector" [Readable]: https://nodejs.org/api/stream.html#stream_class_stream_readable "Readable" [string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "string" [xpath]: https://developer.mozilla.org/en-US/docs/Web/XPath "xpath"