Max

Validates that a numeric value is at most a given maximum. Works with numbers and numeric strings.

Configuration

Config flag	Type	Description
`max`	`number`	Maximum accepted value.
`max`	`[number, string]`	Tuple form — the maximum plus a custom message.

const form = useForm({
  initialValues: { guests: '' },
  validationSchema: {
    guests: { max: 10 },
  },
});

With a custom message:

guests: { max: [10, 'No more than 10 guests'] }

import { V } from 'formify-js';

V.max(10);

Scenario	Message
Value is above the maximum	`Must be at most 10` (the number reflects your value)

The check is inclusive: a value of exactly 10 passes max: 10.
Non-numeric values fail the comparison — pair with numeric or integer for clearer errors.
Use between to constrain both ends at once.