JS Master Class - Exercise 2 - Closures

// Exercise 2 - Closures
// Wrap the following code in a closure and export only the "countdown" function.

// Code
(function(container, name){

        var index;

        function log(){
          console.log(index);
        }

        function iterate(){
          log();
          if(index>1) setTimeout(iterate, 1000);
          index--;
        }

        function countdown(){
          index = 10;
          iterate();
        }
        container[name] = countdown;

})(this, 'countdown');