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 ...

If you have recently been assigned to use JavaScript at work, or if you are looking to build a career using JavaScript, you may be wondering how to go about learning it. Therefore, in this article, I ...

Iodine.js is a micro client-side validation library. It has no dependencies and can be used in isolation or as part of a framework. Iodine also supports chainable rules, allowing you to verify that a ...

Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more. Forms are an essential part ...

In the first part of this article, I proposed implementing form validation/submission in vanilla React (no 3rd party libraries) using HTML5 and Constraint API. The code example provided was ...

When building applications, you cannot avoid handling authentication and one of the ways to handle authentication is by receiving user data via a signup or registration form and such forms contain ...