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A visualization of shuffling a deck of cards
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title> | |
| Deck of Cards | |
| </title> | |
| <style> | |
| #deck { | |
| width: 52em; | |
| background-color: purple; | |
| color: white; | |
| padding: 1em; | |
| text-align: center; | |
| } | |
| .card { | |
| width: 4em; | |
| display: inline-block; | |
| } | |
| .swapping { | |
| background-color: yellow; | |
| color: black; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Fisher-Yates shuffle for 1 deck of cards</h1> | |
| <ul id="deck" class="collection"> | |
| </ul> | |
| <button>Shuffle Now!</button> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> | |
| <script> | |
| function shuffle(m) { | |
| // swap last card with a random card from left | |
| var $m, | |
| rand = Math.floor(Math.random() * m), | |
| $rand; | |
| $('li').removeClass('swapping'); | |
| $mth = $('.card:eq(' + m + ')') | |
| .addClass('swapping') | |
| .fadeIn(); | |
| $rand = $('.card:eq(' + rand + ')') | |
| .addClass('swapping') | |
| .fadeIn(); | |
| $mth.before($rand); | |
| $('.card:eq(' + rand + ')').before($mth); | |
| if (m > 0) { | |
| setTimeout(shuffle, 200, m - 1); | |
| } else { | |
| $('li').removeClass('swapping'); | |
| }; | |
| } | |
| $('button').on('click', function() { | |
| shuffle($(".card").length - 1); | |
| }); | |
| function Deck() { | |
| this.suits = ['H', 'C', 'D', 'S']; | |
| this.ranks = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K']; | |
| var theDeck = this; | |
| $.each(this.suits, function(index, suit) { | |
| $.each(theDeck.ranks, function(index, rank) { | |
| var card = new Card(suit, rank); | |
| $('#deck').append(card.toHTML()); | |
| }); | |
| }); | |
| } | |
| function Card(suit, rank) { | |
| this.suit = suit; | |
| this.rank = rank; | |
| this.toHTML = function() { | |
| return '<li class="card">' + this.rank + '-' + this.suit + '</li>'; | |
| } | |
| } | |
| var deck = new Deck(); | |
| </script> | |
| </body> | |
| </html> |
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