ObserverLike

Minimal observer contract accepted from an asynchronous validation source.

Import

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

Use when implementing an observable-like validator source. Deliver values and completion or errors according to the observer contract.

type ObserverLike<TValue> = {
    next(value: TValue): void;
    error(error: unknown): void;
    complete(): void;
};

Parameter	Constraint	Default
`TValue`	Unconstrained	Required

The declaration above also includes inherited contracts and overloads where applicable.

Member	Meaning
`next`	Emits the validation result for the current run. Only the first emission is used.
`error`	Reports a source failure to the validator's configured `onError` handler.
`complete`	Completes the source. Completing before an emission is treated as successful validation.