What's wrong with a JavaScript class whose constructor returns a function or an object

Question

When I use new to instainciate an instance of a certain class, I got the actual instance. When the constructor function has a return value, the new sen

Answer 1

If you return an object from a constructor, the result of the new ... expression will be the object you returned:

function myWackyConstructor() {
  return new Date();
}

var d = new myWackyConstructor();
console.log(d);

If you return a primitive, the result will be the constructed object:

function myWackyConstructor() {
  this.gotAValue = true;

  return 3;
}

var v = new myWackyConstructor();
console.log(v.gotAValue);

Typically, you should not return anything from a constructor:

function myNormalConstructor() {
  this.gotAValue = true;
}

var v = new myNormalConstructor();
console.log(v.gotAValue);

The question is, why are you returning the constructor from itself?