From e473e4b641c6f2d92ffaa1210d0ddc4b01a45f54 Mon Sep 17 00:00:00 2001
From: Kir_Antipov <kp.antipov@gmail.com>
Date: Mon, 26 Dec 2022 08:16:10 +0000
Subject: [PATCH] Made a type to help me use generics as record keys

---
 src/utils/types/record-key.ts | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/utils/types/record-key.ts

diff --git a/src/utils/types/record-key.ts b/src/utils/types/record-key.ts
new file mode 100644
index 0000000..4006f3e
--- /dev/null
+++ b/src/utils/types/record-key.ts
@@ -0,0 +1,8 @@
+/**
+ * Returns `T` if it extends `PropertyKey`; otherwise, returns `never`.
+ *
+ * This is useful to lift the constraints from a record key.
+ *
+ * @template T - The type to check if it extends `PropertyKey`.
+ */
+export type RecordKey<T> = T extends PropertyKey ? T : never;