18 Sep
2010
18 Sep
'10
1:44 p.m.
On 09/18/2010 02:51 AM, Christopher Tauss wrote:
I am trying to write a function that takes a list and returns the last n elements.
This may just be for the sake of learning, in which case this is fine, but usually, needing to do this would be a sign that you are using lists improperly (since this is a O(n) time operation).
Let's call the function n_lastn and, given a list [1,2,3,4,5], I would like n_lastn 3 = [3,4,5]
n_lastn n = reverse . take n . reverse - Jake