notValue

Creates a not value validation action.

const Action = v.notValue<TInput, TRequirement, TMessage>(requirement, message);

Generics

TInput extends ValueInput
TRequirement extends TInput
TMessage extends ErrorMessage<NotValueIssue<TInput, TRequirement>> | undefined

Parameters

requirement TRequirement
message TMessage

Explanation

With notValue you can validate the value of a string, number, boolean or date. If the input does not match the requirement, you can use message to customize the error message.

Returns

Action NotValueAction<TInput, TRequirement, TMessage>

Examples

The following examples show how notValue can be used.

Number schema

Schema to validate a number that is more or less than 100.

const NumberSchema = v.pipe(
  v.number(),
  v.notValue(100, 'The number must not be 100.')
);

Date schema

Schema to validate a date that is before or after the start of 2000.

const DateSchema = v.pipe(
  v.date(),
  v.notValue(new Date('2000-01-01'), 'The date must not be the start of 2000.')
);

The following APIs can be combined with notValue.

Schemas

Methods

pipe