How does Vuelidate handle asynchronous validation?

Can you explain how Vuelidate handles asynchronous validation?

Sure! Vuelidate allows you to perform asynchronous validation by using a promise-based approach. You can define a validation rule that returns a promise, which resolves to either true or false based on the validation result.

Can you give me an example of how to implement this?

Absolutely! You can create a custom validator like this: async function checkUsername(username) { const response = await fetch('/api/check-username', { method: 'POST', body: JSON.stringify({ username }) }); return response.ok; } Then, use it in your Vuelidate rules.

What happens if the validation fails?

If the validation fails, Vuelidate will mark the field as invalid, and you can display an error message to the user. You can also handle the error in your UI to provide feedback.