Hi, I'm currently learning Haskell, and I've been trying to work out a
function for the following problem for a couple of days now.
I want to use a list comprehension method to change the first letter of a
string to upper case, and the rest of the string to lower case.
Eg: heLLo - Hello
As
I don't think a list comprehension is the easiest way to do it, how
about
upperCase :: String - String
upperCase [] = []
upperCase (x:xs) = toUpper x : map toLower xs
-Ross
On Oct 7, 2009, at 4:48 PM, Steven1990 wrote:
Hi, I'm currently learning Haskell, and I've been trying to work out a
Hint: Move the boundary case outside the comprehension, and then use
the comprehension to handle the normal case.
Also, FYI, a comprehension feeds each value of the list xs into x, and
then evaluates the expression to the left of the pipe with that single
value of x.
Cheers,
Greg
On
2009/10/7 Steven1990 stevenyoung1...@msn.com:
Hi, I'm currently learning Haskell, and I've been trying to work out a
function for the following problem for a couple of days now.
I want to use a list comprehension method to change the first letter of a
string to upper case, and the rest of
not...@gmail.com
Subject: Re: [Haskell-cafe] New to Haskell - List Comprehension Question
To: Steven1990 stevenyoung1...@msn.com
Cc: haskell-cafe@haskell.org
Date: Wednesday, October 7, 2009, 5:20 PM
2009/10/7 Steven1990 stevenyoung1...@msn.com:
Hi, I'm currently learning Haskell, and I've been trying
