Run a function into a web worker instance

web_worker_function_wrapper.js

/**
 * @argument callback function
 * @argument arg argument
 * @argument onMessageCallback function
 * usage: runInWorker(function(e){return JSON.parse(e);}, '{"name": "toto"}', console.log);
**/
function runInWorker(callback, arg, onMessageCallback){
    var blob = new Blob(['onmessage=function(_e){postMessage('+ callback.toString() + '(_e)); close();']);
    var worker = new Worker(URL.createObjectURL(blob));
    worker.onmessage = onMessageCallback;
    worker.postMessage(message)
    return worker;
}