SOURCE

function createFunctions(){
  var result = new Array();
  for(var i = 0;i<10;i++){
    result[i] = function(num){
      return function(){
         return num;
      }
    }(i)
  }
  return result;
  
}
var array = createFunctions();
for(var i = 0;i<array.length;i++){
  console.log(array[i]());
}