Returning an object from a function in JavaScript

Question

I have a function that returns an object in javascript. The objects returned are instances of a "messagePack" that I want to send to the server. Each messagePack will be different. E.g.:

    function someFunc() {
        return {
            name: "chatMessage",
            time: Date.now(),
            data: "yooo hoooo",
            hash: hashFunc()               
        }
    }

I then create a create a messagePack and add it to an array:

    var messagePack = someFunc();

    msgArray.push(messagePack)

Is this ok? Should I be creating a constructor function for message pack and using the new keyword? I've seen this done in as similar situation but I can't see why what I'm doing wont work.

Answer 1

A constructor is useful, when youve got multiple objects containing the same data, e. g. functions or constants. As you dont have this repeatin data ( i believe) , you dont need them. if youve got repeating data, you could do this:

var message_prot={
     name: "chatMessage",
        time: Date.now(),
        data: "yooo hoooo",
        hash: false
};

function somefunc(){
  a=Object.create(message_prot);
  a.name="Hi";
  a.hash=hashfunc();
  return a;
 }

Answer 2

This is a factory pattern, it's perfectly correct. You don't need to use a constructor.