
- Credit card validator javascript how to#
- Credit card validator javascript pdf#
- Credit card validator javascript code#
Credit card validator javascript code#
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Credit card validator javascript pdf#
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Credit card validator javascript how to#

These steps use a continuing example for illustration. To verify the credit card numbers entered by users, follow these steps. Each company sets its own standard format.

This JavaScript function verifies the format according to the specifications set by the company issuing the credit card. You use the pre-defined JavaScript function named ca_fdValidateCC( number, ' type') to validate the format of the credit card number entered by the user, based on the credit card type that the user selected.

Each account number field is disabled by design but is enabled if the user selects the matching credit card type. For each type, you create a radio group option and a text field for the account number. This topic explains how to present two credit card types: Master Card and Visa. Note: You can also use regular expressions to validate the format of credit card numbers and other kinds of commonly requested data, such as social security numbers, email addresses, phone numbers, and so forth. This process does not authenticate the data entered by the user but does assist in the validation process by verifying the format. This topic explains how to configure Form Designer forms to use a JavaScript function to verify that users entered a credit card number in the correct format for the credit card type that they specified. Using the Form Designer › How to Use JavaScript Functions in Fields › How to Validate User Input › How to Use a JavaScript Function to Validate the Format of Credit Card Numbers How to Use a JavaScript Function to Validate the Format of Credit Card Numbers
