Re: [Haskell-cafe] Length of lists within list of lists?

someMethod :: [[a]] -> [Int] someMethod = map length There's a list, haskell-beginners better suited for this kind of question. Alex On Saturday 10 April 2010 18:02:37 boblettoj wrote:

Hi i want to know if there is any method i can use to count the number of items in each list in a list of lists, eg.

someMethod [[a, b, c], [a], [b, d, e, f]] would return [3, 1, 4]

is there anything that can do this? thanks