From c74bb3862190e866a8764bf0781f60b248b64876 Mon Sep 17 00:00:00 2001
From: Tomasz Chojnacki <tomaszchojnacki2001@gmail.com>
Date: Thu, 2 Feb 2023 14:46:32 +0100
Subject: Refactor day 2

---
 aoc-2020-gleam/src/ext/listx.gleam | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 aoc-2020-gleam/src/ext/listx.gleam

(limited to 'aoc-2020-gleam/src/ext')

diff --git a/aoc-2020-gleam/src/ext/listx.gleam b/aoc-2020-gleam/src/ext/listx.gleam
new file mode 100644
index 0000000..d962515
--- /dev/null
+++ b/aoc-2020-gleam/src/ext/listx.gleam
@@ -0,0 +1,7 @@
+import gleam/list
+
+pub fn count(list: List(a), satisfying predicate: fn(a) -> Bool) -> Int {
+  list
+  |> list.filter(for: predicate)
+  |> list.length
+}
-- 
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