difference between calling a cunstructor function using new Con and new Con()?

Asked May 07 '15 at 16:11

Active May 07 '15 at 16:11

Viewed 20 times

I have a chunk of code :

function Cons=function () {
    this.a='a';
}

var obj1 = New Cons;  //  {a: "a"}
var obj2 = New Cons(); // {a: "a"}

both obj1 and obj2 return same object, why ? I mean, what is the difference between creating object using New Cons and New Cons() ?

asked May 07 '15 at 16:11

Mukund Kumar

1

There is no real difference, though the parens are required to pass in arguments. – ndugger May 07 '15 at 16:13
2

There is no difference. The parentheses are optional if no parameters are to be passed to the constructor. – Pointy May 07 '15 at 16:13
1

`new Cons` is syntactic sugar for `new Cons()` – Felix Kling May 07 '15 at 16:23

0 Answers0