validate
inline fun <E, T> MultiErrorKResult<E, T>.validate(failureValue: E, expectationFn: (success: T) -> Boolean): MultiErrorKResult<E, T>(source)
Validates a Success or a FailureWithValue against a predicate (expectationFn] and applies failureValue if not fulfilled
This will return a FailureWithValue in case of an unmatched predicate, so multiple validation failures can be tracked without early termination. If you prefer early termination on the first error, see KResult.filter instead.
Heads up: Be careful with combining validate and flatMap. See documentation of MultiErrorKResult for details
Since
0.2.0
See also
for examples and details