Yup

Yup is a JavaScript library used for validating and validating data, especially in forms. It allows developers to define rules for what data should look like, such as required fields, specific formats, or value ranges. Yup then checks if the data meets these rules, providing a simple way to catch errors before processing or submitting information. Think of it as a set of customizable checks that help ensure the data collected is accurate and consistent, making it easier to build reliable web applications.