client-side validation

Client-side validation checks data entered by users in real-time on their device or browser before submitting it to the server. It helps ensure data correctness and improves user experience by catching errors early.

How can I handle user input and validate form data in my web application?

To handle user input and validate form data in a web application, you can follow these steps:

1. Create an HTML form with appropriate input fields and labels.
2. Use JavaScript to handle form submission and validate the input data.
3. Implement server-side validation to ensure data integrity and security.
4. Display clear error messages to users if validation fails.

By following these steps, you can ensure that the user input is handled correctly and that only valid data is submitted to your web application.

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