With HTML forms submissions today, web developers typically must use JavaScript to ensure values are provided when required and are within appropriate ranges and types. HTML5 offers form field ...

Any data that enters your system from outside a trust boundary should be treated as untrusted until proven otherwise. That includes form fields, API payloads, file uploads, headers, cookies, queue ...

Whether you want to restrict data inputs, ensure consistency, or avoid errors, data validation in Microsoft Excel is the tool for you. It can also serve as a vital safety net if you plan to share your ...

Writing code to validate Web-form input can be even more of a chore than implementing form-processing logic. But help is at hand, thanks to the Struts 2 framework. Oleg Mikheev looks under the hood of ...