Form Handling
Form handling is a fundamental concept in web and application development that involves managing user input through forms, including data collection, validation, processing, and submission. It encompasses client-side and server-side techniques to ensure data integrity, security, and user experience. This includes handling events like form submission, input changes, and implementing features such as error messages and data persistence.
Developers should learn form handling because it is essential for creating interactive applications that collect user data, such as login forms, registration pages, surveys, and e-commerce checkouts. It is critical for ensuring data accuracy through validation, preventing security vulnerabilities like SQL injection or cross-site scripting, and improving usability with real-time feedback. Mastery is required for any web or mobile app that involves user input.