web-worker 可运行在浏览器以及node 的web worker

yarn init -y

yarn add web-worker

const Worker = require("web-worker")

const worker = new Worker("./worker2.js");

worker.addEventListener(‘message‘, e => {

  console.log(e.data)  // "200 OK"

});

worker.postMessage(‘https://httpstat.us/200‘);

const fetch  = require("isomorphic-fetch")

addEventListener(‘message‘, async e => {

  const url = e.data;

  const res = await fetch(url)

  const text = await res.text();

  postMessage(text);

});

node main2.js