Submitting errors to frontend with joi

Question

I have a registration form and I am validating this form with joi. There is no problem so far, I can reflect the errors as json, but I don't know how to print it in the frontend, how can I do that?

I used express-validator before, there was a validationresult structure there, so I could catch errors and send them to the front end. How can I do this here? can you help me.

Validate process like this

const createUserValidation = Joi.object({
    name: Joi.string().required().min(5),
    username : Joi.string().required().min(3),
    password : Joi.string().required().min(8).pattern(new RegExp('^[a-zA-Z0-9]{3,30}$')),
    email: Joi.string().required().email(),

});

In short, I want to transfer the errors returned from here to the front end.

Thank you from now.