Why can't Web Worker call a function directly?

Question

We can use the web worker in HTML5 like this:

var worker = new Worker(\'worker.js\');

but why can\'t we call a function like this?

Answer 1

Just use my tiny plugin https://github.com/zevero/worker-create

and do

var worker_url = Worker.create(function(e){
  self.postMessage('Example post from Worker'); //your code here
});
var worker = new Worker(worker_url);