diff options
Diffstat (limited to 'pkgs/lib/lists.nix')
-rw-r--r-- | pkgs/lib/lists.nix | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/lib/lists.nix b/pkgs/lib/lists.nix index 3a5ed2628de..4359662da27 100644 --- a/pkgs/lib/lists.nix +++ b/pkgs/lib/lists.nix @@ -161,4 +161,10 @@ rec { in qs list []; + + # haskell's take: take 2 [1 2 3 4] yields [1 2] + take = count: list: + if list == [] || count == 0 then [] + else [ (head list) ] ++ take (builtins.sub count 1) (tail list); + } |