How to sleep for X seconds in Puppeteer

// Minimal puppeteer example
const puppeteer = require('puppeteer');
(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://techoverflow.net', {waitUntil: 'domcontentloaded'});
  // Wait for 5 seconds
  await page.waitForTimeout(5000);
  // Take screenshot
  await page.screenshot({path: 'screenshot.png'});
  await browser.close();
})();

或者使用

new Promise(r => setTimeout(r, milliseconds))