View difference between Paste ID: UYqpwYYS and gy8e4Dye

 /************ CoffeeScript source: ************
 deckSize = 52
 deck = [0...deckSize]
 
 rand = (min = 0, max = 51) ->
   Math.floor(Math.random() * (max - min + 1)) + min
 
 swap = (a, b) ->
   [deck[a], deck[b]] = [deck[b], deck[a]]
 
 testCount = 52
 test = (deck) ->
     deck = [0...deckSize]
     $('<table>').appendTo 'body'
     for [1..testCount]
         do shuffle
         for i in [0...deckSize]
             if deck.indexOf(i) is -1 then throw "#{i} is not in the deck"
             if deck.length isnt 52 then throw "deck length is #{deck.length}; should be 52"
         plot deck
 
 plot = (deck) ->
     tr = $ '<tr>'
     for i in [0...deck.length]
         bg = 5 * deck[i] % 256
         tr.append """
             <td style='background-color:rgb(#{bg},#{bg},#{bg});'>
                 &nbsp;
             </td>"""
     tr.appendTo 'table'
 
 $ () ->
     test deck
 *********************************************/
 //Usage:
 //1. Include jQuery
-var deckSize, plot, rand, swap, test, testCount;
+
 var deck, deckSize, plot, rand, swap, test, testCount, _i, _results;
 
 deckSize = 52;
 
 deck = (function() {
   _results = [];
   for (var _i = 0; 0 <= deckSize ? _i < deckSize : _i > deckSize; 0 <= deckSize ? _i++ : _i--){ _results.push(_i); }
   return _results;
 }).apply(this);
 
 rand = function(min, max) {
   if (min == null) min = 0;
   if (max == null) max = 51;
   return Math.floor(Math.random() * (max - min + 1)) + min;
 };
 
 swap = function(a, b) {
-  var i, _i, _j, _k, _results, _results1;
+
   return _ref = [deck[b], deck[a]], deck[a] = _ref[0], deck[b] = _ref[1], _ref;
-    _results = [];
+
-    for (var _i = 0; 0 <= deckSize ? _i < deckSize : _i > deckSize; 0 <= deckSize ? _i++ : _i--){ _results.push(_i); }
+
-    return _results;
+
 
 test = function(deck) {
-  _results1 = [];
+  var i, _j, _k, _l, _results1, _results2;
-  for (_j = 1; 1 <= testCount ? _j <= testCount : _j >= testCount; 1 <= testCount ? _j++ : _j--) {
+
     _results1 = [];
-    for (i = _k = 0; 0 <= deckSize ? _k < deckSize : _k > deckSize; i = 0 <= deckSize ? ++_k : --_k) {
+    for (var _j = 0; 0 <= deckSize ? _j < deckSize : _j > deckSize; 0 <= deckSize ? _j++ : _j--){ _results1.push(_j); }
     return _results1;
   }).apply(this);
   $('<table>').appendTo('body');
   _results2 = [];
   for (_k = 1; 1 <= testCount ? _k <= testCount : _k >= testCount; 1 <= testCount ? _k++ : _k--) {
-    _results1.push(plot(deck));
+
     for (i = _l = 0; 0 <= deckSize ? _l < deckSize : _l > deckSize; i = 0 <= deckSize ? ++_l : --_l) {
-  return _results1;
+
       if (deck.length !== 52) {
         throw "deck length is " + deck.length + "; should be 52";
       }
-  var bg, i, tr, _i, _ref;
+
     _results2.push(plot(deck));
-  for (i = _i = 0, _ref = deck.length; 0 <= _ref ? _i < _ref : _i > _ref; i = 0 <= _ref ? ++_i : --_i) {
+
   return _results2;
 };
 
 plot = function(deck) {
   var bg, i, tr, _j, _ref;
   tr = $('<tr>');
   for (i = _j = 0, _ref = deck.length; 0 <= _ref ? _j < _ref : _j > _ref; i = 0 <= _ref ? ++_j : --_j) {
     bg = 5 * deck[i] % 256;
     tr.append("<td style='background-color:rgb(" + bg + "," + bg + "," + bg + ");'>\n    &nbsp;\n</td>");
   }
   return tr.appendTo('table');
 };
 
 $(function() {
   return test(deck);
 });