From bce557cc2dc767628bed6aac87301a1be7c5431b Mon Sep 17 00:00:00 2001
From: rxliuli <rxliuli@gmail.com>
Date: Tue, 4 Nov 2025 05:03:50 +0800
Subject: init commit

---
 shared/components/src/utils/memoize.ts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 shared/components/src/utils/memoize.ts

(limited to 'shared/components/src/utils/memoize.ts')

diff --git a/shared/components/src/utils/memoize.ts b/shared/components/src/utils/memoize.ts
new file mode 100644
index 0000000..a5e07ef
--- /dev/null
+++ b/shared/components/src/utils/memoize.ts
@@ -0,0 +1,26 @@
+// eslint-disable-next-line import/prefer-default-export
+export function memoize<T extends unknown[], S>(
+    fn: (...args: T) => S,
+    hashFn: (...args: unknown[]) => string = JSON.stringify,
+    entryLimit = 5,
+): (...args: T) => S {
+    const cache: Map<string, S> = new Map();
+
+    return (...args: T) => {
+        const value = hashFn(args);
+        if (cache.has(value)) {
+            return cache.get(value);
+        }
+
+        const returnedValue: S = fn.apply(this, args);
+
+        if (cache.size >= entryLimit) {
+            const iterator = cache.keys();
+            const firstValue = iterator.next().value;
+            // remove oldest value
+            cache.delete(firstValue);
+        }
+        cache.set(value, returnedValue);
+        return returnedValue;
+    };
+}
-- 
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