Joi is a powerful schema description language and data validator for JavaScript. It allows you to define a schema for your data and validate input against that schema, ensuring data integrity and consistency. Joi provides a rich set of validation rules and options, making it flexible and customizable for various use cases. It is widely used in Node.js applications for input validation, data transformation, and error handling.
Compared to other validation libraries like Yup or Validator.js, Joi stands out for its comprehensive schema definition capabilities and robust validation features. It offers detailed error messages, support for complex data structures, and seamless integration with popular frameworks like Hapi.
Tags: javascriptvalidationschemadatavalidator