const puppeteer = require('puppeteer');

const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms));

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();

  // list of URLs to scrape
  const urls = ['https://example.com/page1', 'https://example.com/page2', 'https://example.com/page3'];

  for (const url of urls) {
    await page.goto(url);

    // example scraping logic: Get and log the page title
    const pageTitle = await page.title();
    console.log(`Title of ${url}: ${pageTitle}`);

    // introduce a delay of 3 seconds before the next request
    await delay(3000);
  }

  // Close the browser
  await browser.close();
})();