main.js

// yarn add request
const request = {
  get (uri, opts) {
    // lazy require
    const request = require('util').promisify(require('request'))
    const reqOpts = {
      method: 'GET',
      timeout: 30000,
      resolveWithFullResponse: true,
      json: true,
      uri,
      ...opts
    }

    return request(reqOpts)
  }
}

const registries = {
  npm: 'https://registry.npmjs.org',
  yarn: 'https://registry.yarnpkg.com',
  taobao: 'https://registry.npm.taobao.org',
  pnpm: 'https://registry.npmjs.org',
}

const packages = ['vue-cli-version-marker', 'siegegg-api', 'express', 'request', 'ts-node', 'axios', 'bootstrap', 'jquery']

async function ping(registry, pkg) {
  console.time(registry)
  await request.get(`${registry}/${pkg}/latest`)
  console.timeEnd(registry)
  return registry
}

async function main(pkg) {
  console.log('Using', pkg);
  let faster = await Promise.all([
    ping(registries.yarn, pkg),
    ping(registries.taobao, pkg),
  ])
}

(async () => {
  for (let pkg of packages) {
    await main(pkg);
  }
})()