Jesus sucks

backend/frontend/node_modules/@restart/hooks/esm/useRefWithInitialValueFactory.js

@@ -0,0 +1,22 @@
+import { useRef } from 'react';
+const dft = Symbol('default value sigil');
+
+/**
+ * Exactly the same as `useRef` except that the initial value is set via a
+ * factory function. Useful when the default is relatively costly to construct.
+ *
+ *  ```ts
+ *  const ref = useRefWithInitialValueFactory<ExpensiveValue>(() => constructExpensiveValue())
+ *
+ *  ```
+ *
+ * @param initialValueFactory A factory function returning the ref's default value
+ * @category refs
+ */
+export default function useRefWithInitialValueFactory(initialValueFactory) {
+  const ref = useRef(dft);
+  if (ref.current === dft) {
+    ref.current = initialValueFactory();
+  }
+  return ref;
+}