Validation rule that allows you to check combinations of rules created with AND logical operations.

Implements: IValidationRule


The AndRule class allows you to validate combinations of rules created with AND logical operations.

Important points

  • When one or more of the combined rules return errors, then this rule returns all the errors that appeared.
  • When none of the combined rules returns errors, then this rule also returns no errors.


Creates a new validation rule and sets its values.

public constructor(…rules: IValidationRule[])

Instance methods


Validates a given value against this rule.

public validate(path: string, schema: Schema, value: any, results: ValidationResult[]): void

  • path: string - dot notation path to the value.
  • schema: Schema - schema this rule is called from.
  • value: any - value to be validated.
  • results: IValidationRule[] - list with validation results to add new results.


let schema = Schema().withRule(AndRule(ValueComparisonRule("GTE", 1), ValueComparisonRule("LTE", 10)))
schema.validate(0)          // Result: 0 must be greater or equal to 1
schema.validate(5)          // Result: no error
schema.validate(20)         // Result: 20 must be letter or equal 10

See also