From 75128c8e22f6fd923ad350eef54d5eba73b3d758 Mon Sep 17 00:00:00 2001
From: afc163 <afc163@gmail.com>
Date: Tue, 24 Jan 2017 15:10:04 +0800
Subject: [PATCH] fix ts error, ref #4675

---
 components/table/filterDropdown.tsx | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/components/table/filterDropdown.tsx b/components/table/filterDropdown.tsx
index 5e40477326..4e5c556d71 100755
--- a/components/table/filterDropdown.tsx
+++ b/components/table/filterDropdown.tsx
@@ -42,10 +42,10 @@ export default class FilterMenu extends React.Component<FilterMenuProps, any> {
 
   componentWillReceiveProps(nextProps) {
     const { column } = nextProps;
-    let newState: {
-      selectedKeys?: string[];
-      visible?: boolean;
-    } = {};
+    const newState = {} as {
+      selectedKeys: string[];
+      visible: boolean;
+    };
     if ('selectedKeys' in nextProps) {
       newState.selectedKeys = nextProps.selectedKeys;
     }