JavaScript Master Class - Exercise 2 - Closures

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

// Code
var countdown = (function(){
     var index;

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

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

    return function(){
          index = 10;
          iterate();
     }
})();