Function checkIf

Results in "validity" if the specified function returns true for a given value, otherwise results in "invalidity".

checkIf<T>(checker, validationError?): ValidationCheckerFunction<T>
Type Parameters
- T
Parameters
- checker: ((value: T) => boolean)
  - - (value): boolean
    - Parameters
      value: T
      Returns boolean
- validationError: ValidationError = defaultValidationError
Returns ValidationCheckerFunction<T>