What programming language is used with Puppeteer?

Puppeteer is a Node.js library which provides a high-level API to control Chrome or Chromium browsers over the DevTools Protocol. Puppeteer runs headless by default, but can be configured to run full (non-headless) Chrome or Chromium. Therefore, the primary programming language used with Puppeteer is JavaScript (or TypeScript, which is a superset of JavaScript).

Here is an example of how to use Puppeteer with JavaScript:

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await page.screenshot({path: 'example.png'});

  await browser.close();
})();

This script tells the browser to go to https://example.com and then take a screenshot. The screenshot is saved in the same directory as example.png.

In summary, Puppeteer is primarily used with JavaScript or TypeScript because it is a Node.js library.