From 03ec44bac8b83498f434402c50998c8b57960e17 Mon Sep 17 00:00:00 2001
From: Alec Larson <1925840+aleclarson@users.noreply.github.com>
Date: Tue, 25 Jun 2024 22:34:15 -0400
Subject: [PATCH] feat: add `matchKeys` function

---
 src/curry/matchKeys.ts | 19 +++++++++++++++++++
 src/index.ts           |  1 +
 2 files changed, 20 insertions(+)
 create mode 100644 src/curry/matchKeys.ts

diff --git a/src/curry/matchKeys.ts b/src/curry/matchKeys.ts
new file mode 100644
index 000000000..4d57215de
--- /dev/null
+++ b/src/curry/matchKeys.ts
@@ -0,0 +1,19 @@
+import { isArray } from 'radashi'
+
+export type KeyFilter<T extends object, Key extends keyof T = keyof T> =
+  | KeyMatcher<T>
+  | Key[]
+
+export type KeyMatcher<T extends object> = (
+  value: T[keyof T],
+  key: keyof T,
+  obj: T
+) => boolean
+
+export const matchKeys = <T extends object, Key extends keyof T = keyof T>(
+  keys: KeyFilter<T, Key>
+): KeyMatcher<T> =>
+  isArray(keys)
+    ? (_, key, obj) =>
+        Object.hasOwnProperty.call(obj, key) && keys.includes(key as Key)
+    : keys
diff --git a/src/index.ts b/src/index.ts
index ac6503ce1..7c991ade7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -43,6 +43,7 @@ export * from './curry/callable'
 export * from './curry/chain'
 export * from './curry/compose'
 export * from './curry/debounce'
+export * from './curry/matchKeys'
 export * from './curry/memo'
 export * from './curry/partial'
 export * from './curry/partob'