HTML form validation is a process of examining the HTML form page’s contents to avoid errored-out data being sent to the server. This process is a significant step in developing HTML-based web applications, as it

Why is Form Validation Needed? Form validation is required to prevent online form abuse by malicious users. Improper validation of form data is one of the main causes of security vulnerabilities. It exposes your website

Form validation is a « technical process where a web-form checks if the information provided by a user is correct. » The form will either alert the user that they messed up and need to fix something