|
|
|
|
|
by pshirshov
225 days ago
|
|
Either is biased, union is not. Probably we should say "union" instead of sum, as typescript unions are not discriminated. string | string in typescript is exactly the same as just string, while Either[String, String] is a type which is exactly a sum of two string types. Plus Either is biased towards R, the happy path value. |
|