How do I add custom validation to validate if the object has two properties of same value?

[Mr-M1M3]

Hello, there!!! I'm validating signup data where user should pass an object containing two fields:

{
...
password: 'lalalala'
passwordConfirm: 'lalalala' // I want to check if password and passwordConfirm properties are equal.
}

How do I check if the password and passwordconfirm contains equal value? Thanks.

[fabian-hiller]

import * as v from 'valibot';

const RegisterSchema = v.pipe(
  v.object({
    email: v.pipe(
      v.string(),
      v.nonEmpty('Please enter your email.'),
      v.email('The email address is badly formatted.')
    ),
    password1: v.pipe(
      v.string(),
      v.nonEmpty('Please enter your password.'),
      v.minLength(8, 'Your password must have 8 characters or more.')
    ),
    password2: v.string(),
  }),
  v.forward(
    v.partialCheck(
      [['password1'], ['password2']],
      (input) => input.password1 === input.password2,
      'The two passwords do not match.'
    ),
    ['password2']
  )
);