Hidden Inputs
Hidden inputs are HTML form elements (<input type="hidden">) that store data on a web page without displaying it to users, allowing developers to pass information between client and server during form submissions. They are commonly used to maintain state, track session IDs, or include metadata that doesn't require user interaction. This concept is fundamental in web development for preserving data across HTTP requests.
Developers should use hidden inputs when they need to include data in forms that users shouldn't see or modify, such as CSRF tokens for security, pagination details, or identifiers for database operations. They are essential in scenarios like multi-step forms, where previous step data must be carried forward, or in e-commerce to pass product IDs without cluttering the UI. Learning this is crucial for building secure and stateful web applications.