how double parantheses ()() workes in JavaScript?

Question

Here i have a question regarding Double parentheses, can anyone please explain me how does it works.

function counter() {
  console.log("hI");
  return function (){
    console.log("inside hI");
  }
}    
counter()();

score 1 · Accepted Answer · answered Aug 17 '18 at 07:23

1

In your example counter returns a function, so having parentheses after the call to counter calls the function that counter returns

answered Aug 17 '18 at 07:23

OliverRadini

1

Thank you for the answer @Oliver, can you provide me any document regarding this topic, wanted to study more on this topic. – Santhosh Acharya Aug 17 '18 at 07:26
1

@SanthoshAcharya Google `IIFE` – StudioTime Aug 17 '18 at 07:27
1

@DarrenSweeney ya sure I wil do it. Thank you. – Santhosh Acharya Aug 17 '18 at 07:29

1 Answers1