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

frontend/node_modules/@mui/utils/useLazyRef/useLazyRef.js

@@ -0,0 +1,25 @@
+"use strict";
+'use client';
+
+var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = useLazyRef;
+var React = _interopRequireWildcard(require("react"));
+const UNINITIALIZED = {};
+
+/**
+ * A React.useRef() that is initialized lazily with a function. Note that it accepts an optional
+ * initialization argument, so the initialization function doesn't need to be an inline closure.
+ *
+ * @usage
+ *   const ref = useLazyRef(sortColumns, columns)
+ */
+function useLazyRef(init, initArg) {
+  const ref = React.useRef(UNINITIALIZED);
+  if (ref.current === UNINITIALIZED) {
+    ref.current = init(initArg);
+  }
+  return ref;
+}