npm i puppeteer --save
  

// screenshot.js
  
const puppeteer = require('puppeteer');
  
puppeteer.launch({
  
  headless: false
  
}).then(async browser => {
  
  const page = await browser.newPage();
  
  await page.goto('https://example.com');
  
  await page.screenshot({path: 'example.png'});
  
  await browser.close();
  
});
  
// run the demo
  
// node screenshot.js