Validator

Synchronous validator receiving the current value as a reactive signal.

Import

import type { Validator } from '@ngblocks/form-nodes';

When to use it

Use to type a reusable synchronous rule. Author it through validator() when you want contextual value and owner inference from the consuming declaration.

Declaration

type Validator<TValue> = (context: FieldContext<TValue>) => ValidationResult;

Type parameters

Parameter	Constraint	Default
TValue	Unconstrained	Required

Related reference

• Validation reference
• Public types index
• FieldContext
• ValidationResult