From 512d690e3eac67ca95212b96f8527b0ffa451a02 Mon Sep 17 00:00:00 2001
From: Eduard Rastoropov <eduard.rastoropov@gmail.com>
Date: Mon, 23 Jul 2018 14:14:12 +0300
Subject: [PATCH 1/2] Added null as acceptable value of anchorEl

https://github.com/mui-org/material-ui/issues/12210#issuecomment-406725291
---
 packages/material-ui/src/Menu/Menu.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/material-ui/src/Menu/Menu.d.ts b/packages/material-ui/src/Menu/Menu.d.ts
index c36e60aefd6d70..c0fffa1f53d609 100644
--- a/packages/material-ui/src/Menu/Menu.d.ts
+++ b/packages/material-ui/src/Menu/Menu.d.ts
@@ -8,7 +8,7 @@ import { ClassNameMap } from '../styles/withStyles';
 
 export interface MenuProps
   extends StandardProps<PopoverProps & Partial<TransitionHandlerProps>, MenuClassKey> {
-  anchorEl?: HTMLElement | ((element: HTMLElement) => HTMLElement);
+  anchorEl?: null | HTMLElement | ((element: HTMLElement) => HTMLElement);
   disableAutoFocusItem?: boolean;
   MenuListProps?: Partial<MenuListProps>;
   PaperProps?: Partial<PaperProps>;

From adf4d4154045fbcbd93d7ef6655ba966ce48988c Mon Sep 17 00:00:00 2001
From: Olivier Tassinari <olivier.tassinari@gmail.com>
Date: Mon, 23 Jul 2018 23:19:16 +0200
Subject: [PATCH 2/2] let's merge

---
 packages/material-ui/src/Menu/Menu.d.ts       | 1 -
 packages/material-ui/src/Popover/Popover.d.ts | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/material-ui/src/Menu/Menu.d.ts b/packages/material-ui/src/Menu/Menu.d.ts
index c0fffa1f53d609..1e76c0adcd1dee 100644
--- a/packages/material-ui/src/Menu/Menu.d.ts
+++ b/packages/material-ui/src/Menu/Menu.d.ts
@@ -8,7 +8,6 @@ import { ClassNameMap } from '../styles/withStyles';
 
 export interface MenuProps
   extends StandardProps<PopoverProps & Partial<TransitionHandlerProps>, MenuClassKey> {
-  anchorEl?: null | HTMLElement | ((element: HTMLElement) => HTMLElement);
   disableAutoFocusItem?: boolean;
   MenuListProps?: Partial<MenuListProps>;
   PaperProps?: Partial<PaperProps>;
diff --git a/packages/material-ui/src/Popover/Popover.d.ts b/packages/material-ui/src/Popover/Popover.d.ts
index 813e4599214fd5..de2712c73405a9 100644
--- a/packages/material-ui/src/Popover/Popover.d.ts
+++ b/packages/material-ui/src/Popover/Popover.d.ts
@@ -19,7 +19,7 @@ export type PopoverReference = 'anchorEl' | 'anchorPosition' | 'none';
 export interface PopoverProps
   extends StandardProps<ModalProps & Partial<TransitionHandlerProps>, PopoverClassKey, 'children'> {
   action?: (actions: PopoverActions) => void;
-  anchorEl?: HTMLElement | ((element: HTMLElement) => HTMLElement);
+  anchorEl?: null | HTMLElement | ((element: HTMLElement) => HTMLElement);
   anchorOrigin?: PopoverOrigin;
   anchorPosition?: PopoverPosition;
   anchorReference?: PopoverReference;