Convert an Array in a Linked List Object

linkedList.js

/**
 * Solution to exercise 4.3
 * from Eloquent JavaScript Book,
 * Chapter 4 - Exercise 4.3
 * 
 * http://eloquentjavascript.net/04_data.html
 */

function arrayToList(arr) {
  var list = null;
  
  for(var i = arr.length - 1; i >= 0; i-- ) {
    list = {value: arr[i], rest: list};
  }
  
  return list;
}