Monads 0.2.0 API documentation

If the value is nil return default, otherwise call f on the
maybe value.

Takes a vector of bindings and a final body. Terminates
execution when the first nil value is encountered,
otherwise returns the then value.  Optionally, pass an
else value that will be returned if a nil value is encountered
in the bindings.

If the maybe value is nil return default wrapped in Err,
otherwise return the value wrapped in Ok.

Execute body within a try/catch block. Returns the
body if no exception is thrown, otherwise nil.