What are some examples of Joi validation?

What are some examples of Joi validation?

Joi is a powerful schema description language and data validator for JavaScript. Here are a few examples:

1. String Validation: You can validate a string to ensure it meets certain criteria, like minimum length:

   const schema = Joi.string().min(3).required();
   

2. Number Validation: To validate a number within a specific range:

   const schema = Joi.number().min(1).max(10).required();
   

3. Object Validation: You can validate an object with specific properties:

   const schema = Joi.object({
       name: Joi.string().required(),
       age: Joi.number().min(0).required()
   });
   

Would you like to see more examples or details on a specific type of validation?

Can you show me how to validate an array?

Sure! To validate an array, you can use Joi's array() method. Here’s an example:

const schema = Joi.array().items(Joi.string().min(3)).required();

This schema validates that the array contains strings, each with a minimum length of 3 characters. Would you like to know more about other data types?

What about validating dates?

For validating dates, you can use the date() method in Joi. Here’s an example:

const schema = Joi.date().iso().required();

This ensures that the date is in ISO format. Would you like to explore more about Joi or any specific validation rules?