optional.or

Gets the value or else something else

Members

FrontOrThrowException class FrontOrThrowException: An exception that's throw by frontOrThrow should the exception maker throw

frontOr auto frontOr(T value)
auto frontOr(T value, U elseValue): If value is valid, it returns the internal value. This means .front for a range, .get for a Nullable!T, etc. If value is invalid, then elseValue is returned. If an elsePred is provided than that is called.
frontOrThrow auto frontOrThrow(T value)
auto frontOrThrow(T value, U throwable): Same as frontOr except it throws an error if it can't get the value
or auto or(T value)
auto or(T value, U elseValue): If value is valid, it returns the value. If value is invalid, then elseValue is returned. If an elsePred is provided than that is called.