How can I use Yup for validation in TypeScript?

How can I use Yup for validation in TypeScript?

You can use Yup by defining a schema that describes the shape of your data and then validating it against that schema.

Can you show me a simple example of a validation schema?

Sure! Here's a basic example:

import * as Yup from 'yup';

const schema = Yup.object().shape({
  name: Yup.string().required('Name is required'),
  age: Yup.number().min(18, 'Must be at least 18').required('Age is required'),
});

How do I validate data using this schema?

You can use the validate method like this:

schema.validate({ name: 'John', age: 25 })
  .then(() => console.log('Valid!'))
  .catch(err => console.log(err.errors));

What if the validation fails?

If validation fails, Yup will throw an error, and you can catch it to handle the validation messages accordingly.