Creates a pipeline validation action that validates the value of a string, number, boolean or date.

const Validation = maxValue<TInput, TRequirement>(requirement, message);


  • TInput extends string | number | bigint | boolean | Date
  • TRequirement extends TInput



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.



The following examples show how maxValue can be used.

Number schema

Schema to validate a number with a maximum value.

const NumberSchema = number([maxValue(100, 'The number must not exceed 100.')]);

Date schema

Schema to validate a date with a maximum year.

const DateSchema = date([
  maxValue(new Date('1999-12-31'), 'The date must not exceed the year 1999.'),

The following APIs can be combined with maxValue.



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