13 Feb
2016
13 Feb
'16
2:48 p.m.
On Sat, Feb 13, 2016 at 09:18:07AM -0800, Eric Seidel wrote:
Here's what the GHCi session should look like.
$ ghci GHCi, version 8.0.0.20160204: http://www.haskell.org/ghc/ :? for help Loaded GHCi configuration from /home/callen/.ghci Prelude> let myList = [1..5 :: Integer] Prelude> let myList' = myList ++ undefined Prelude> :t myList' myList' :: HasCallStack => [Integer]
What use case is satisfied by providing this information? How does it benefit the Haskell programmer? How do I use it?