有一些答案，但这里是另一个内联版本。

注意:“self”参数纯粹是为了检测目的而做的修饰，实际的工作代码从第一个大括号开始，self是正常的

inlineWorker ( "hello world",// initial message to send to worker function(self){ // inline worker code. self.onmessage = function (e) { self.postMessage("thinking..."); for (var i=0;i<100000000;i++) { var r = Math.random(); } self.postMessage(e.data.toUpperCase()); } },function(e){ // optional message handler document.getElementById("log").innerHTML= "from worker:"+e.data; }); function inlineWorker (msg,fn,onMsg) { var w=window, U=!!w.webkitURL?w.webkitURL:w.URL, src=fn.toString(), s=src.indexOf('{'), e=src.lastIndexOf('}'), worker = new Worker(U.createObjectURL( new Blob([ src.substring(s+1,e-1) ], { type: "text/javascript" }) )); if (typeof onMsg==="function") { worker.addEventListener("message",onMsg); } if (msg) { worker.postMessage(msg); } return worker; } <div id="log"></div>

对于Node.js实现，可以使用以下对Trincot答案的改编。再次注意，Function.prototype.callAsWorker()接受一个thisArg和参数，就像Function.prototype.call()一样，并返回一个承诺。

const { Worker } = require ( 'worker_threads' );

Function.prototype.callAsWorker = function ( ...args ) {
    return new Promise( ( resolve, reject ) => {

        const code = `
            const { parentPort, workerData } = require ( 'worker_threads' );
            parentPort.postMessage( ( ${this.toString()} ).call( ...workerData ) )
        `;
        const worker = new Worker( code, { eval: true, workerData: args } );
            
        worker.on('message', ( msg ) => { resolve( msg ), worker.terminate() } );
        worker.on('error', ( err ) => { reject( err ), worker.terminate() } );
        worker.on('exit', ( code ) => {
            if ( code !== 0 ) {
                reject( new Error( `Worker stopped with exit code ${code}.` ) );
            }
        });

    });
}

// Demo
function add( ...nums ) {
    return nums.reduce( ( a, b ) => a + b );
}

// Let the worker execute the above function, with the specified arguments
let result = await add.callAsWorker( null, 1, 2, 3 );
console.log( 'result: ', result );

近期答案(2018)

你可以使用Greenlet:

移动一个异步函数到它自己的线程中。Workerize的简化单功能版本。

例子:

import greenlet from 'greenlet'

const getName = greenlet(async username => {
  const url = `https://api.github.com/users/${username}`
  const res = await fetch(url)
  const profile = await res.json()
  return profile.name
})

console.log(await getName('developit'))

将Adria的响应放在一个可复制粘贴的函数中，该函数适用于当前的Chrome和FF，但不适用于IE10 (worker from blob会导致安全错误)。

var newWorker = function (funcObj) {
    // Build a worker from an anonymous function body
    var blobURL = URL.createObjectURL(new Blob(
        ['(', funcObj.toString(), ')()'],
        {type: 'application/javascript'}
     ));

    var worker = new Worker(blobURL);

    // Won't be needing this anymore
    URL.revokeObjectURL(blobURL);

    return worker;
}

下面是一个工作示例http://jsfiddle.net/ubershmekel/YYzvr/

@Trincot's似乎是目前为止最好的。然而，也许我们可以进一步发展它。所以我的想法是，

我们不要修改Function.prototype。 为线程操作获取函数的承诺/线程化版本。 如果需要，请确保仍然可以同步调用该函数。

因此，我们用spawn方法定义了Threadable类。一旦我们将函数设为该类的成员，那么它就是可线程的:)

class Threadable extends Function { constructor(f){ super("...as",`return ${f.toString()}.apply(this,as)`); } spawn(...as){ var code = `self.onmessage = m => self.postMessage((${this.toString()}).apply(self,m.data));`, blob = new Blob([code], {type: "text/javascript"}), wrkr = new Worker(window.URL.createObjectURL(blob)); return new Promise( (v,x) => ( wrkr.onmessage = m => (v(m.data), wrkr.terminate()) , wrkr.onerror = e => (x(e.message), wrkr.terminate()) , wrkr.postMessage(as) ) ); } } function add(...nums) { return nums.reduce((a,b) => a+b); } var addT = new Threadable(add); addT.spawn(1,2,3,4) .then(m => console.log(`Promisified thread returned ${m}`)); console.log(`Synchronous invocation of addT returned ${addT(1,2,3,4)}`);

我认为更好的方法是使用Blob对象，下面你可以看到一个简单的例子。

// create a Blob object with a worker code
var blob = new Blob(["onmessage = function(e) { postMessage('msg from worker'); }"]);

// Obtain a blob URL reference to our worker 'file'.
var blobURL = window.URL.createObjectURL(blob);

// create a Worker
var worker = new Worker(blobURL);
worker.onmessage = function(e) {
  console.log(e.data);
};
worker.postMessage("Send some Data");