Learn how to use JavaScript for form processing, validation, and more. Forms are an essential part of HTML pages, and developers typically use JavaScript to elaborate on how they function.

preventing your customers from having to re-key their information when they are passed to the PayPal sign-up page during the payment process. The HTML form passes key-value pairs to PayPal in a ...

encodings may not coexist on the same page because the upper halves of their encoding spaces map numbers to different characters. Another headache comes from receiving HTML form input from users ...

To create a Web page that collects user information, you design a Web form made of HTML code. The form displays a set of questions and text boxes in the user's Web browser. When the user clicks ...