From 632c153b974ee9c553d08beb27d5e4d60396a2ac Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Sun, 2 Nov 2025 20:24:33 -0800
Subject: map index

---
 src/lang/util/number.ts | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/lang/util/number.ts')

diff --git a/src/lang/util/number.ts b/src/lang/util/number.ts
index 132994b..6e4e360 100644
--- a/src/lang/util/number.ts
+++ b/src/lang/util/number.ts
@@ -32,3 +32,6 @@ export type Multiply<M extends number, N extends number> = MultiplyInner<
   M,
   NumberToArray<N>
 >;
+
+export type ExtractNumber<T extends any> =
+  T extends `${infer Inner extends number}` ? Inner : never;
-- 
cgit v1.2.3-70-g09d2