Hello,

To practice recursion I try to make some functions of Data list myself on the recursive way.

First I will try last.

So I did this :

-- | Main entry point to the application.
module Main where

-- | The main entry point.
last' :: [a] -> a
last' [] = []
last' (x:xs) = last xs


but now I see this error message :

src/Main.hs@6:12-6:14

Couldn't match expected type

a

with actual type

[t0]

a

is a rigid type variable bound by the type signature for last' :: [a] -> a at /home/app/isolation-runner-work/projects/112712/session.207/src/src/Main.hs:5:10 Relevant bindings include last' :: [a] -> a (bound at /home/app/isolation-runner-work/projects/112712/session.207/src/src/Main.hs:6:1) …

I my oponion I have said that the input is a array and the output a string,

Roelof

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