From df8eca6ef2de1ee1915ac01d24a694db541d1c74 Mon Sep 17 00:00:00 2001
From: Ilia Mashkov <hikkikomori7@gmail.com>
Date: Sun, 18 Jan 2026 14:37:23 +0300
Subject: [PATCH] feat(splitArray): create a util to split an array based on a
 boolean resulting callback

---
 src/shared/lib/utils/splitArray/splitArray.ts | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/shared/lib/utils/splitArray/splitArray.ts

diff --git a/src/shared/lib/utils/splitArray/splitArray.ts b/src/shared/lib/utils/splitArray/splitArray.ts
new file mode 100644
index 0000000..5d8bf71
--- /dev/null
+++ b/src/shared/lib/utils/splitArray/splitArray.ts
@@ -0,0 +1,8 @@
+export function splitArray<T>(array: T[], callback: (item: T) => boolean) {
+    return array.reduce<[T[], T[]]>(
+        ([pass, fail], item) => (
+            callback(item) ? pass.push(item) : fail.push(item), [pass, fail]
+        ),
+        [[], []],
+    );
+}