Tuple - Apply value to tuple of functions

[gregberns]

Had a problem where I had a tuple of functions (a->b, a->c), so needed to apply a to both functions and return (b,c).

Signature: (a -> b, a -> c) -> a -> (b, c)

Example: (id, increment) -> 1 -> (1,2)

Looked very general, and wonderful Haskell friends agreed:

uncurry (&&&), with a ~ (->)
bisequence, with t ~ (,) and `f ~ ((->) r)

• uncurry
• &&&
• &&& on Arrow
• bisequence

At minimum, something similar could be added to Tuple. Bifunctor is also quite helpful (tuples, results/either, etc). And Bitraversable is new to me, but has some interesting applications.

[maxkorp]

Only Tuple5.apply for whatever reason is still inside the individual arity files, but Tuple.apply2...Tuple.apply5 already exist in Tuple.re, as aliases to Function.uncurry2...Function.uncurry5