[Haskell-cafe] Library function for map+append

[Bayley, Alistair]

> From: haskell-cafe-bounces at haskell.org 
> [mailto:haskell-cafe-bounces at haskell.org] On Behalf Of Dusan Kolar
> 
>   During a small project I'm trying to develop a small 
> application. It 
> becomes quite often that I need a function mapapp:
> 
> mapapp _ [] ap = ap
> mapapp f (a:as) ap = f a : map f as ap
> 
>   I tried hoogle to find such a function with no success. Is 
> there any 
> function/functions built-in "standard" libraries that could easily 
> satisfy the functionality with the same or even better (?) efficiency?


What does mapapp do? What is its type?

At first I thought maybe you were rewriting concatMap, but now I can't
tell what you're doing.
http://www.haskell.org/ghc/docs/latest/html/libraries/base/Data-List.htm
l#v%3AconcatMap

Alistair
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