Alpha

The alpha rule validates that a value contains only alphabetic characters (letters).

Configuration

validationSchema: {
  name: { alpha: true },
}

With a custom message:

name: { alpha: "Only letters are allowed" }

V builder

import { V } from "formify-js";

V.alpha()
V.alpha("Only letters are allowed")

Default message

Only letters allowed

Examples

Things to know

• Spaces, digits, and punctuation are rejected.
• Empty values pass unless required: true is also set.
• To allow digits too, use alphanumeric instead.