jquery.payment

jQuery.payment A general purpose library for building credit card forms, validating inputs and formatting numbers. Project status jquery.payment is deprecated. We recommend that you use either Stripe Checkout or Stripe Elements to collect card information. We will patch jquery.payment for major critical/security issues, but we won't be adding new features. Usage You can make an input act like a credit card field (with number formatting and length restriction): $('input.cc-num').payment('formatCardNumber'); Then, when the payment form is submitted, you can validate the card number on the client-side: var valid = $.payment.validateCardNumber($('input.cc-num').val()); if (!valid) { alert('Your card is not valid!'); return false; } You can find a full demo here. Supported card types are: Visa MasterCard American Express Diners Club Discover UnionPay JCB Maestro Forbrugsforeningen Dankort (Additional card types are supported by extending the $.payment.cards array.) API $.fn.payment('formatCardNumber') Formats card numbers: Includes a space between every 4 digits Restricts input to numbers Limits to 16 numbers Supports American Express formatting Adds a class of the card type (e.g. 'visa') to the input Example: $('input.cc-num').payment('formatCardNumber'); $.fn.payment('formatCardExpiry') Formats card expiry: Includes a / between the month and year Restricts input to numbers Restricts length Example: $('input.cc-exp').payment('formatCardExpiry'); $.fn.payment('formatCardCVC') Formats card CVC: Restricts length to 4 numbers Restricts input to numbers Example: $('input.cc-cvc').payment('formatCardCVC'); $.fn.payment('restrictNumeric') General numeric input restriction. Example: $('[data-numeric]').payment('restrictNumeric'); $.payment.validateCardNumber(number) Validates a card number: Validates numbers Validates Luhn algorithm Validates length Example: $.payment.validateCardNumber('4242 4242 4242 4242'); //=> true $.payment.validateCardExpiry(month, year) Validates a card expiry: Validates numbers Validates in the future Supports year shorthand Example: $.payment.validateCardExpiry('05', '20'); //=> true $.payment.validateCardExpiry('05', '2015'); //=> true $.payment.validateCardExpiry('05', '05'); //=> false $.payment.validateCardCVC(cvc, type) Validates a card CVC: Validates number Validates length to 4 Example: $.payment.validateCardCVC('123'); //=> true $.payment.validateCardCVC('123', 'amex'); //=> true $.payment.validateCardCVC('1234', 'amex'); //=> true $.payment.validateCardCVC('12344'); //=> false $.payment.cardType(number) Returns a card type. Either: visa mastercard amex dinersclub discover unionpay jcb maestro forbrugsforeningen dankort The function will return null if the card type can't be determined. Example: $.payment.cardType('4242 4242 4242 4242'); //=> 'visa' $.payment.cardExpiryVal(string) and $.fn.payment('cardExpiryVal') Parses a credit card expiry in the form of MM/YYYY, returning an object containing the month and year. Shorthand years, such as 13 are also supported (and converted into the longhand, e.g. 2013). $.payment.cardExpiryVal('03 / 2025'); //=> {month: 3, year: 2025} $.payment.cardExpiryVal('05 / 04'); //=> {month: 5, year: 2004} $('input.cc-exp').payment('cardExpiryVal') //=> {month: 4, year: 2020} This function doesn't perform any validation of the month or year; use $.payment.validateCardExpiry(month, year) for that. $.payment.cards Array of objects that describe valid card types. Each object should contain the following fields: { // Card type, as returned by $.payment.cardType. type: 'mastercard', // Array of prefixes used to identify the card type. patterns: [ 51, 52, 53, 54, 55, 22, 23, 24, 25, 26, 27 ], // Array of valid card number lengths. length: [16], // Array of valid card CVC lengths. cvcLength: [3], // Boolean indicating whether a valid card number should satisfy the Luhn check. luhn: true, // Regex used to format the card number. Each match is joined with a space. format: /(\d{1,4})/g } When identifying a card type, the array is traversed in order until the card number matches a prefix in patterns. For this reason, patterns with higher specificity should appear towards the beginning of the array. Example Look in ./example/index.html Building Run cake build Running tests Run cake test Autocomplete recommendations We recommend you turn autocomplete on for credit card forms, except for the CVC field (which should never be stored). You can do this by setting the autocomplete attribute: <form autocomplete="on"> <input class="cc-number" autocomplete="cc-number"> <input class="cc-exp" autocomplete="cc-exp"> <input class="cc-cvc" autocomplete="off"> </form> You should mark up your fields using the Autofill spec. These are respected by a number of browsers, including Chrome, Safari, Firefox. Mobile recommendations We recommend you to use <input type="tel"> which will cause the numeric keyboard to be displayed on mobile devices: <input type="tel" class="cc-number">