JS doesn't have any useful built-in way to deal with success/failure, other than exceptions. We use Boxed[1] for this: Result .fromExecution(() => schema

JS doesn't have any useful built-in way to deal with success/failure, other than exceptions. We use Boxed[1] for this: Result .fromExecution(() => schema.parse(input)) .mapOk(parsed_input => /* */) .mapError(parse_errors => /* */) which is an alright way to deal with things IMO. I would hazard a guess that `parse` is a function introduced long ago, and `safeParse` came afterwards. (Safe as in "do not throw an exception") [1]: https://github.com/swan-io/boxed https://github.com/swan-io/boxed