Initial commit: Wallet App - FastAPI backend with React frontend for personal finance tracking

frontend/node_modules/@mui/system/esm/memoize/index.js

@@ -0,0 +1 @@
+export { default } from "./memoize.js";

frontend/node_modules/@mui/system/esm/memoize/memoize.js

@@ -0,0 +1,9 @@
+export default function memoize(fn) {
+  const cache = {};
+  return arg => {
+    if (cache[arg] === undefined) {
+      cache[arg] = fn(arg);
+    }
+    return cache[arg];
+  };
+}