Validating email field


13-Sep-2019 18:10

validating email field-67

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Similarly, form data is typically saved in a database on the server.

Because your database contains sensitive information, hackers may attempt to use your form to submit malicious commands to your backend database.

For example, suppose you wanted to validate a credit card.

All credit cards are 16 digits and the 16th digit can be calculated based on the first 15 numbers.

This javascript validation code is cross browser compatible (works for all browsers).

In this way, client side form validation can vastly improve the user experience.You cannot rely on Java Script to avoid this security problem. You can also download this demo and check out the source as we go through this tutorial.



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