# Talk:Compose

From HaskellWiki

Reading this page got me to write an arrow version of compose. Don't know if it should be included or not since it isn't a monadic solution.<p/>

```
composeArrow :: [a -> a] -> a -> a <br/>
composeArrow = foldr ((>>>) . arr) (arr id)
```

Or maybe this:

```
composeArrow :: [a -> a] -> a -> a
composeArrow = foldl ((>>>) . arr) returnA
```

The first version does not need the function composition, because the functions could be applied immediately. This leads to

```
compose = flip (foldl (flip id))
```

Shall I replace the first solution?