Hi guys. I need an equivalent for: ```val result:Try<T> = Try.applicative().tupled()```

# arrow

[Alvaro Blazquez checa]

Hi guys. I need an equivalent for:

val result:Try<T> = Try.applicative().tupled()

[Alvaro Blazquez checa]

Its related to kotlin arrow migration to 1.0

[Alvaro Blazquez checa]

How can I do this operation with Either in 1.0

[Alvaro Blazquez checa]

val result:Try<Tuple2<T, W>> = Try.applicative().tupled(
  U -> Try<T>,
  V -> Try<W>
).fix()

[Alvaro Blazquez checa]

this is the correct operation

[Alvaro Blazquez checa]

I want to migrate this to Either<Throwable, Tuple2<T,W>> in arrow 1.0

[Alvaro Blazquez checa]

Could you give me a reference for that?

[Alvaro Blazquez checa]

Also I think there is no Tuple2 in 1.0. Why is that? it is superseeded by native Pair?

[simon.vergauwen]

Hey @Alvaro Blazquez checa,

Yes, Tuple2 is superseded by Pair from the Kotlin Std.

[simon.vergauwen]

You can do the operation in the following style in Arrow.

val result: Either<Throwable, Pair<T, W>> =
  Either.catch { f() }
   .zip(Either.catch { g() }, ::Pair)

[Alvaro Blazquez checa]

Great @simon.vergauwen thanks for helping me out again!!