Joi is a powerful schema description language and data validation library 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 error messages, making it easy to handle complex validation scenarios.
Compared to other validation libraries like Yup or Validator.js, Joi offers a more declarative and expressive syntax, making it easier to define and maintain validation rules. It also integrates well with frameworks like Hapi.js for server-side validation.
Alternatives: yup, validator.js, ajv
Tags: javascriptvalidationschemadata integrityerror handling