# maxValue

> This document is the Markdown version of [valibot.dev/api/maxValue/](https://valibot.dev/api/maxValue/). For the complete documentation index, see [llms.txt](https://valibot.dev/llms.txt).

Creates a max value validation action.

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

## Generics

- `TInput` `extends ValueInput`
- `TRequirement` `extends TInput`
- `TMessage` `extends ErrorMessage<MaxValueIssue<TInput, TRequirement>> | undefined`

## Parameters

- `requirement` `TRequirement`
- `message` `TMessage`

### Explanation

With `maxValue` 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` `MaxValueAction<TInput, TRequirement, TMessage>`

## Examples

The following examples show how `maxValue` can be used.

### Number schema

Schema to validate a number with a maximum value.

```ts
const NumberSchema = v.pipe(
  v.number(),
  v.maxValue(100, 'The number must not exceed 100.')
);
```

### Date schema

Schema to validate a date with a maximum year.

```ts
const DateSchema = v.pipe(
  v.date(),
  v.maxValue(new Date('1999-12-31'), 'The date must not exceed the year 1999.')
);
```

## Related

The following APIs can be combined with `maxValue`.

### Schemas

[`any`](/api/any.md), [`bigint`](/api/bigint.md), [`boolean`](/api/boolean.md), [`custom`](/api/custom.md), [`date`](/api/date.md), [`number`](/api/number.md), [`string`](/api/string.md), [`unknown`](/api/unknown.md)

### Methods

[`pipe`](/api/pipe.md)

### Utils

[`isOfKind`](/api/isOfKind.md), [`isOfType`](/api/isOfType.md)