How to make a local variable into a global in JavaScript [duplicate]

Question

How can I make a local variable inside a function into a global in JavaScript?

P.S: Just pure JavaScript, no jQuery.

P.P.S.: Nothing toooo complicated, thanks. :)

Answer 1

You can do the following to access a global inside of a function.

Any variable created outside the scope of a function can be referenced inside of a function.

Var myGlobalVar;

Function myFunction(){
   if(....) {
        myGlobalVar = 1;
   }
}

Answer 2

You don't.

You can copy a local variable to the global scope by doing window.myVar = myVar (replacing window by whatever is your global object), but if you reassign the local one, the global copy won't follow.