What are the differences between async and sync validators?

What are the differences between async and sync validators?

Async validators are executed asynchronously, allowing for non-blocking operations, while sync validators run synchronously, blocking the execution until they complete.

Can you give me an example of when to use async validators?

Sure! Use async validators when you need to validate data against an external source, like checking if a username is already taken.

What are some common use cases for sync validators?

Sync validators are often used for simple checks, like ensuring a field is not empty or validating a format, such as an email address.

Are there any performance implications between the two?

Yes, async validators can improve performance in applications that require real-time validation without freezing the UI, while sync validators can be faster for simple checks.