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.

Developers use application programming interfaces to hide complexity, organize code, design reusable components, and connect different systems, applications, or services.

Most of the components, software code structures, operating system connections, data services and interconnectivity channels that exist in an application could (and usually should) also exist in a ...