Between

The between rule validates that a numeric value falls within an inclusive range.

Configuration

Config flag	Type	Description
`between`	`[min, max]`	Inclusive lower and upper bounds.
`between`	`[[min, max], string]`	Tuple form — the bounds plus a custom message.

validationSchema: {
  score: { between: [1, 100] },
}

With a custom message:

score: { between: [[1, 100], "Score must be between 1 and 100"] }

import { V } from "formify-js";

V.between(1, 100)
V.between(1, 100, "Score must be between 1 and 100")

The default message interpolates the bounds, e.g. Must be between 1 and 100 ({min} / {max} placeholders).

Both bounds are inclusive: between: [1, 100] accepts exactly 1 and 100.
Non-numeric values fail the comparison — pair with numeric or integer for clearer errors.
Equivalent to combining min and max, but keeps the range in one place with a single combined message.