| 1 | # Puppeteer
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| 2 |
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| 3 | [](https://github.com/puppeteer/puppeteer/actions/workflows/ci.yml)
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| 4 | [](https://npmjs.org/package/puppeteer)
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| 5 |
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| 6 | <img src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" height="200" align="right"/>
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| 7 |
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| 8 | > Puppeteer is a JavaScript library which provides a high-level API to control
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| 9 | > Chrome or Firefox over the
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| 10 | > [DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/) or [WebDriver BiDi](https://pptr.dev/webdriver-bidi).
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| 11 | > Puppeteer runs in the headless (no visible UI) by default
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| 12 |
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| 13 | ## [Get started](https://pptr.dev/docs) | [API](https://pptr.dev/api) | [FAQ](https://pptr.dev/faq) | [Contributing](https://pptr.dev/contributing) | [Troubleshooting](https://pptr.dev/troubleshooting)
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| 14 |
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| 15 | ## Installation
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| 16 |
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| 17 | ```bash npm2yarn
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| 18 | npm i puppeteer # Downloads compatible Chrome during installation.
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| 19 | npm i puppeteer-core # Alternatively, install as a library, without downloading Chrome.
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| 20 | ```
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| 21 |
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| 22 | ## Example
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| 23 |
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| 24 | ```ts
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| 25 | import puppeteer from 'puppeteer';
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| 26 | // Or import puppeteer from 'puppeteer-core';
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| 27 |
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| 28 | // Launch the browser and open a new blank page
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| 29 | const browser = await puppeteer.launch();
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| 30 | const page = await browser.newPage();
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| 31 |
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| 32 | // Navigate the page to a URL.
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| 33 | await page.goto('https://developer.chrome.com/');
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| 34 |
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| 35 | // Set screen size.
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| 36 | await page.setViewport({width: 1080, height: 1024});
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| 37 |
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| 38 | // Type into search box.
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| 39 | await page.locator('.devsite-search-field').fill('automate beyond recorder');
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| 40 |
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| 41 | // Wait and click on first result.
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| 42 | await page.locator('.devsite-result-item-link').click();
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| 43 |
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| 44 | // Locate the full title with a unique string.
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| 45 | const textSelector = await page
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| 46 | .locator('text/Customize and automate')
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| 47 | .waitHandle();
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| 48 | const fullTitle = await textSelector?.evaluate(el => el.textContent);
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| 49 |
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| 50 | // Print the full title.
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| 51 | console.log('The title of this blog post is "%s".', fullTitle);
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| 52 |
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| 53 | await browser.close();
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| 54 | ```
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