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Chapter 10. Forms > Validating Forms

10.4. Validating Forms

It can be frustrating to look over feedback that's been submitted via a form on your Web page, only to notice that your visitor failed to provide a name, email address, or some other piece of critical information. That's why, depending on the type of form, you might want to make certain information mandatory.

For example, a form used for subscribing to an email newsletter isn't much use if the would-be reader doesn't type in an email address for receiving it. Likewise, if you need a shipping address to deliver a brochure or product, you'll want to be sure that the user included her address on the form.


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