Kokkai Speed Battle

index.js

const puppeteer = require('puppeteer')
const URLs = [
  'http://abehiroshi.la.coocan.jp/',
  'https://www.jcp.or.jp/',
  'https://www.komei.or.jp/',
  'https://cdp-japan.jp/',
  'https://kibounotou.jp/',
  'https://o-ishin.jp/',
  'http://www.liberalparty.jp/',
  'http://www5.sdp.or.jp/',
  'https://www.jimin.jp/',
];

async function measureTime (browser, url)  {
  let results = []
  const page = await browser.newPage()
  for (let i = 0; i < 10; i++) {
    await page.goto(url, {waitUntil: 'load', timeout: 0})
    // await page.goto(url, {waitUntil: 'networkidle0'})
    results.push(await page.evaluate(() => {
      const tim = window.performance.timing
      return tim.loadEventEnd - tim.navigationStart
    }))
    console.log([i, url, results[results.length - 1]])
  }
  await page.close()
  return results.reduce((prev, cur) => prev + cur) / 10.0 // average
}

(async () => {
  const browser = await puppeteer.launch({
    args: ['--disable-setuid-sandbox', '--no-sandbox']
  })

  const results = await Promise.all(URLs.map(url => measureTime(browser, url)))
  
  console.log(results.map((time, i) => [URLs[i], time]).sort((a, b) => a[1] - b[1]))

  await browser.close()
})()