Function maxValueValidator

maxValueValidator(
maxValue?: number,
errorMessage?: string,
): SyncValidationFunction<number | null>
Returns a validation function to validate that a number is less than or equal to the max value, if given. Inclusive version of upperBoundValidator.

Note: null values count as valid.
Parameters
- OptionalmaxValue: number
  The maximum allowed value.
- OptionalerrorMessage: string
  A custom error message to display if the value is invalid.
Returns SyncValidationFunction<number | null>