Question

I want the variable i to be a counter, but it is being initialized to 100 each time.

How do I call myFunction().f() directly?

function myFunction() {
    var i=100;
    function f() {
        i=i+1;
        return i;
    }
    return f(); // with parenthesis
};
var X = myFunction();
console.log(X);
X = myFunction();
console.log(X);

Answer 1

You can’t call f directly. It is wrapped in a closure, the point of which is to close over all the local variable. You have to expose it to the outside of myFunction.

First:

return f; //(); // withOUT parenthesis

Then just call X, as you’ll have assigned a function to it.

var X = myFunction();
X();