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

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


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



With value 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 value can be used.

Number schema

Schema to validate a number with a specific value.

const NumberSchema = number([value(100, 'The number must be 100.')]);

Date schema

Schema to validate a date with a specific value.

const DateSchema = date([
  value(new Date('2000-01-01'), 'The date must be the first day of 2000.'),

The following APIs can be combined with value.



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