If you’ve ever confronted the task of validating data in a form, you know about choice. Whether it’s choosing between client side or server-side scripts, or the amount of information a user should see on the screen, the results should always give the user quick and meaningful feedback, while providing a solution for when things go wrong.
Thanks to AJAX, we can provide real-time feedback to the user using server-side validation scripts and eliminate the need for redundant validation functions without giving up a solution that degrades gracefully when JavaScript is disabled.
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