Std.Result.map2
fn
map2: Result[T, E] -> Result[U, E] -> fn(T, U) -> V -> Result[V, E]This is a callable function.
What it does
Both successes combined, or the first failure.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Result makes success and recoverable failure part of the function's type.