This is roughly how one would implement the `new` operator in JavaScript.

newOperator.js

function newOperator(Constr, args) {
    var inst = Object.create(Constr.prototype);
    var result = Constr.apply(inst, args);
    if (typeof result === 'object' && result !== null) {
        return result;
    }
    return inst;
}

Hi axel, I'm not very experienced and I'd like to ask you a question, why is this way of creating objects better than calling directly to the constructor?

And the other one, is, the following piece of code makes any sense or has no advantage?
Thank you

function myObjectConstructor(parameter, parameter2){
  //perform private logic

  return {
    parameter: parameter,
    parameter2: parameter2
   }
}

var myObjectInstantiator = (function (Constr) {
  return function(arguments){
    var inst = Object.create(Constr.prototype);
    var result = Constr.apply(inst, arguments);
    if (typeof result === 'object' && result !== null) {
        return result;
    }
    return inst;
}
})(myObjectConstructor);

Call it with

var objectInstance = myObjectInstantiator([6,true])

Make that if (typeof result === 'function' || (typeof result === 'object' && result !== null)) {