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awesome npm packages for data validation and parsing(user login validation)

in this post we covering three of the best npm packages for data validation and schema building for javascript programming language

before you start reading, give a follow.


Yup is a JavaScript schema builder for value parsing and validation. Define a schema, transform a value to match, validate the shape of an existing value, or both. Yup schema are extremely expressive and allow modeling complex, interdependent validations, or value transformations.

Yup's API is heavily inspired by Joi, but leaner and built with client-side validation as its primary use-case. Yup separates the parsing and validating functions into separate steps. cast() transforms data while validate checks that the input is the correct shape. Each can be performed together (such as HTML form validation) or seperately (such as deserializing trusted data from APIs).


volder is powerful Object schema validation, it lets you describe your data using a simple and readable schema and transform a value to match the requirements, it has custom error messages, custom types and nested schemas.

3. joi

The most powerful schema description language and data validator for JavaScript.

don't go without star that repos

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