#267 CoffeeScript Basics - RailsCasts

var CreditCard = { cleanNumber: function(number) { return number.replace(/[- ]/g, ""); }, validNumber: function(number) { var total = 0; number = this.cleanNumber(number); for (var i=number.length-1; i >= 0; i--) { var n = +number[i]; if ((i+number.length) % 2 == 0) { n = n*2 > 9 ?n*2 - 9 : n*2; } total += n; }; return total % 10 == 0; } }; $(function() { $("#order_credit_card_number").blur(functi