gistfile1.js

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

// Code

var foo = (function(){

  var index;

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

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

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

  
})();