feat: update code

Author: meet-student

docs/examples/items.tsx

@@ -23,7 +23,7 @@ export default () => (
         ),
       },
       {
-        key: 'ToOriginNode',
+        key: 'ToOriginNode1',
         label: 'SubMenu',
         render: (_originNode, item) => <p>item: extra: {JSON.stringify(item)}</p>,
       },

src/interface.ts

@@ -6,7 +6,7 @@ interface ItemSharedProps {
   ref?: React.Ref<HTMLLIElement | null>;
   style?: React.CSSProperties;
   className?: string;
-  render?: (originalNode: React.ReactNode, item: ItemType) => React.ReactNode;
+  render?: (originalNode: React.ReactNode, item: NonNullable<ItemType>) => React.ReactNode;
 }
 
 export interface SubMenuType extends ItemSharedProps {

tests/MenuItem.spec.tsx

@@ -257,7 +257,6 @@ describe('MenuItem', () => {
 
       const link = container.querySelector('a');
       expect(link).toHaveAttribute('href', 'https://ant.design');
-
       expect(container.querySelector('#upload')).toHaveTextContent('extra');
     });
   });