Iterative List Reverse

iterative_list_reverse.js

function reverse(list){
  var temp = [];
  while (list != null){
    temp.push(list.head);
    list = list.tail;
  }
  var newList = {
    head: temp.shift,
    tail:null
  }
  while (temp.length != 0){
    newList = {
      head: temp.shift(),
      tail: newList
    }
  }
  return newList;
}

var numbers = { head:1, tail:{ head:2, tail:{ head:3, tail:null }}};