add hw2

node_modules/@tanstack/react-virtual/dist/esm/index.js

@@ -0,0 +1,54 @@
+import * as React from "react";
+import { flushSync } from "react-dom";
+import { Virtualizer, elementScroll, observeElementOffset, observeElementRect, windowScroll, observeWindowOffset, observeWindowRect } from "@tanstack/virtual-core";
+export * from "@tanstack/virtual-core";
+const useIsomorphicLayoutEffect = typeof document !== "undefined" ? React.useLayoutEffect : React.useEffect;
+function useVirtualizerBase(options) {
+  const rerender = React.useReducer(() => ({}), {})[1];
+  const resolvedOptions = {
+    ...options,
+    onChange: (instance2, sync) => {
+      var _a;
+      if (sync) {
+        flushSync(rerender);
+      } else {
+        rerender();
+      }
+      (_a = options.onChange) == null ? void 0 : _a.call(options, instance2, sync);
+    }
+  };
+  const [instance] = React.useState(
+    () => new Virtualizer(resolvedOptions)
+  );
+  instance.setOptions(resolvedOptions);
+  useIsomorphicLayoutEffect(() => {
+    return instance._didMount();
+  }, []);
+  useIsomorphicLayoutEffect(() => {
+    return instance._willUpdate();
+  });
+  return instance;
+}
+function useVirtualizer(options) {
+  return useVirtualizerBase({
+    observeElementRect,
+    observeElementOffset,
+    scrollToFn: elementScroll,
+    ...options
+  });
+}
+function useWindowVirtualizer(options) {
+  return useVirtualizerBase({
+    getScrollElement: () => typeof document !== "undefined" ? window : null,
+    observeElementRect: observeWindowRect,
+    observeElementOffset: observeWindowOffset,
+    scrollToFn: windowScroll,
+    initialOffset: () => typeof document !== "undefined" ? window.scrollY : 0,
+    ...options
+  });
+}
+export {
+  useVirtualizer,
+  useWindowVirtualizer
+};
+//# sourceMappingURL=index.js.map