[Haskell-cafe] Re: Best way to write endsWith

[Stephan Walter]

John Ky wrote:
> Hello,
> 
> I have this function here:
> 
>> endsWith :: Eq a => [a] -> [a] -> Bool
>> endsWith suffix list
>>   | lengthDifference < 0 = False
>>   | otherwise = (drop lengthDifference list) == suffix
>>   where lengthDifference = (length list) - (length suffix)

I thinks that's what List.isSuffixOf does.

> I like being able to say "abc" `endsWith` "c", but I also like to be able to
> say map (endsWith 't') ["cat", dog"] but I can't have both.

import List
"c" `isSuffixOf` "abc"
map ("t" `isSuffixOf`) ["cat", "dog"]


--Stephan