handle multiple pages

puppeteer-multiple-pages.js

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch({ headless: false });
  const page = await browser.newPage();
  await page.goto('https://test-navlang-demo-vvkpjvrhym.now.sh');
  await page.setViewport({ width: 1380, height: 900 });
  await page.waitFor(1000);

  const page2 = await browser.newPage();
  await page2.goto('https://www.google.com/');

  await page.bringToFront(); // use this to activates Tab

  // use elementHandle.type
  const selectElem = await page.$('select[name="choose1"]');
  await selectElem.type('Value 2');

  // use page.select
  await page.select('select[name="choose2"]', 'val3');

})();

any body is able to interact with elements in second page