Creating JS object with Object.create(null)?

Question

I know a lot of ways to create JS objects but I didn\'t know the Object.create(null)\'s one.

Question:

is it exactly the same as:

Answer 1

If someone is looking for implementing Object.create(null), just to know how it works. It is written using __proto__ which is non-standard and hence, I do not recommend it.

function objectCreateMimic()
{
  /*optional parameters: prototype_object, own_properties*/
  var P = arguments.length>0?arguments[0]:-1;
  var Q = arguments.length>1?arguments[1]:null;
  var o = {};
  if(P!==null && typeof P === "object")
  {
    o.__proto__ = P;
  }
  else if(P===null)
  {
    o.__proto__ = null;
  }
  if(Q!==null && typeof Q === "object")
  {
   for(var key in Q)
   {
     o[key] = Q[key];
   }
  }
  return o;
}

Note: I wrote this, out of curiosity, and it is only written in simple terms, for instance, I am not transferring the property descriptors from the second object to the return object.