#What is Joi?
#Joi Key Features
Most recognizable Joi features include:
- Provides a simple and easy-to-use syntax for defining data validation rules.
- Comes with built-in validation rules for common use-cases such as string length, numeric range, email validation, and more.
- Allows for complex validation rules that can depend on other values in the data.
- Supports custom validation rules that can be defined by the developer.
- Can be used both on the server-side and in the browser.
- Can be integrated with other libraries and frameworks such as Express and Hapi.
Some of the Joi use-cases are:
- Validating user input from web forms to ensure data quality.
- Validating data before it is stored in a database or sent to an API.
- Validating configuration files and other structured data.
- Enforcing business rules and constraints on data.
- Generating formatted error messages for data validation failures.
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