javascript functions are objects?

Question

I am struggling with a Javascript question for some time now and I was not able to find an explanation on the web. I guess it is because I do not enter the right keywords wh

Answer 1

Since JavaScript has function scope, you can use a function to store the value of n like so:

var addn = (function(n) {
  return function(x) {
    n += x;
    return n;
  }
}(2);

addn(3) // 5
addn(3) // 8