feat(utils): adds memoize

rafamel · Apr 24, 2019 · 24212ed · 24212ed
1 parent aad9f6e
commit 24212ed
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/src/utils/memoize.ts b/src/utils/memoize.ts
@@ -0,0 +1,14 @@
+import hash from 'object-hash';
+import { IOfType } from '~/types';
+
+// TODO modularize
+export default function memoize<T extends Function>(fn: T): T {
+  const cache: IOfType<any> = {};
+
+  return function(...args: any[]) {
+    const key = hash(args);
+    if (cache.hasOwnProperty(key)) return cache[key];
+
+    return (cache[key] = fn(...args));
+  } as any;
+}