diff --git a/components/layout/Sider.tsx b/components/layout/Sider.tsx
index b130fe359..ca7651c36 100644
--- a/components/layout/Sider.tsx
+++ b/components/layout/Sider.tsx
@@ -46,9 +46,10 @@ export const SiderProps = {
 //   belowShow?: boolean;
 // }
 
-// export interface SiderContext {
-//   siderCollapsed: boolean;
-// }
+export interface SiderContextProps {
+  sCollapsed?: boolean;
+  collapsedWidth?: string | number;
+}
 
 const generateId = (() => {
   let i = 0;
diff --git a/components/menu/MenuItem.jsx b/components/menu/MenuItem.tsx
similarity index 77%
rename from components/menu/MenuItem.jsx
rename to components/menu/MenuItem.tsx
index 96ddaad5d..7f952dcc8 100644
--- a/components/menu/MenuItem.jsx
+++ b/components/menu/MenuItem.tsx
@@ -1,8 +1,9 @@
 import { defineComponent, inject } from 'vue';
 import { Item, itemProps } from '../vc-menu';
 import { getOptionProps, getSlot } from '../_util/props-util';
-import Tooltip from '../tooltip';
-function noop() {}
+import Tooltip, { TooltipProps } from '../tooltip';
+import { SiderContextProps } from '../layout/Sider';
+
 export default defineComponent({
   name: 'MenuItem',
   inheritAttrs: false,
@@ -10,13 +11,13 @@ export default defineComponent({
   isMenuItem: true,
   setup() {
     return {
-      getInlineCollapsed: inject('getInlineCollapsed', noop),
-      layoutSiderContext: inject('layoutSiderContext', {}),
+      getInlineCollapsed: inject<() => boolean>('getInlineCollapsed', () => false),
+      layoutSiderContext: inject<SiderContextProps>('layoutSiderContext', {}),
     };
   },
   methods: {
-    onKeyDown(e) {
-      this.$refs.menuItem.onKeyDown(e);
+    onKeyDown(e: HTMLElement) {
+      (this.$refs.menuItem as any).onKeyDown(e);
     },
   },
   render() {
@@ -31,7 +32,7 @@ export default defineComponent({
     } else if (title === false) {
       tooltipTitle = '';
     }
-    const tooltipProps = {
+    const tooltipProps: TooltipProps = {
       title: tooltipTitle,
     };
     const siderCollapsed = this.layoutSiderContext.sCollapsed;
@@ -48,7 +49,7 @@ export default defineComponent({
       ...attrs,
       ref: 'menuItem',
     };
-    const toolTipProps = {
+    const toolTipProps: TooltipProps = {
       ...tooltipProps,
       placement: 'right',
       overlayClassName: `${rootPrefixCls}-inline-collapsed-tooltip`,
diff --git a/components/menu/SubMenu.jsx b/components/menu/SubMenu.tsx
similarity index 70%
rename from components/menu/SubMenu.jsx
rename to components/menu/SubMenu.tsx
index 989866306..8da036938 100644
--- a/components/menu/SubMenu.jsx
+++ b/components/menu/SubMenu.tsx
@@ -1,22 +1,29 @@
-import { inject } from 'vue';
+import { defineComponent, inject } from 'vue';
 import { SubMenu as VcSubMenu } from '../vc-menu';
 import classNames from '../_util/classNames';
 import Omit from 'omit.js';
 import { getSlot } from '../_util/props-util';
 
-export default {
+export type MenuTheme = 'light' | 'dark';
+
+export interface MenuContextProps {
+  inlineCollapsed?: boolean;
+  theme?: MenuTheme;
+}
+
+export default defineComponent({
   name: 'ASubMenu',
   isSubMenu: true,
   inheritAttrs: false,
   props: { ...VcSubMenu.props },
   setup() {
     return {
-      menuPropsContext: inject('menuPropsContext', {}),
+      menuPropsContext: inject<MenuContextProps>('menuPropsContext', {}),
     };
   },
   methods: {
     onKeyDown(e) {
-      this.$refs.subMenu.onKeyDown(e);
+      (this.$refs.subMenu as any).onKeyDown(e);
     },
   },
 
@@ -33,4 +40,4 @@ export default {
     };
     return <VcSubMenu {...props}>{getSlot(this)}</VcSubMenu>;
   },
-};
+});
diff --git a/components/menu/index.jsx b/components/menu/index.tsx
similarity index 92%
rename from components/menu/index.jsx
rename to components/menu/index.tsx
index 16050fc27..e7e613ff0 100644
--- a/components/menu/index.jsx
+++ b/components/menu/index.tsx
@@ -1,4 +1,4 @@
-import { defineComponent, inject, provide, toRef } from 'vue';
+import { defineComponent, inject, provide, toRef, App, ExtractPropTypes } from 'vue';
 import omit from 'omit.js';
 import VcMenu, { Divider, ItemGroup } from '../vc-menu';
 import SubMenu from './SubMenu';
@@ -10,6 +10,8 @@ import { hasProp, getOptionProps, getSlot } from '../_util/props-util';
 import BaseMixin from '../_util/BaseMixin';
 import commonPropsType from '../vc-menu/commonPropsType';
 import { defaultConfigProvider } from '../config-provider';
+import { SiderContextProps } from '../layout/Sider';
+import { tuple } from '../_util/type';
 // import raf from '../_util/raf';
 
 export const MenuMode = PropTypes.oneOf([
@@ -22,7 +24,7 @@ export const MenuMode = PropTypes.oneOf([
 
 export const menuProps = {
   ...commonPropsType,
-  theme: PropTypes.oneOf(['light', 'dark']).def('light'),
+  theme: PropTypes.oneOf(tuple('light', 'dark')).def('light'),
   mode: MenuMode.def('vertical'),
   selectable: PropTypes.looseBool,
   selectedKeys: PropTypes.arrayOf(PropTypes.oneOfType([PropTypes.string, PropTypes.number])),
@@ -43,10 +45,10 @@ export const menuProps = {
   onClick: PropTypes.func,
   onMouseenter: PropTypes.func,
   onSelectChange: PropTypes.func,
-  'onUpdate:selectedKeys': PropTypes.func,
-  'onUpdate:openKeys': PropTypes.func,
 };
 
+export type MenuProps = Partial<ExtractPropTypes<typeof menuProps>>;
+
 const Menu = defineComponent({
   name: 'AMenu',
   inheritAttrs: false,
@@ -56,23 +58,33 @@ const Menu = defineComponent({
   SubMenu: { ...SubMenu, name: 'ASubMenu' },
   ItemGroup: { ...ItemGroup, name: 'AMenuItemGroup' },
   mixins: [BaseMixin],
+  emits: [
+    'update:selectedKeys',
+    'update:openKeys',
+    'mouseenter',
+    'openChange',
+    'click',
+    'selectChange',
+    'select',
+    'deselect',
+  ],
   created() {
     provide('getInlineCollapsed', this.getInlineCollapsed);
     provide('menuPropsContext', this.$props);
   },
   setup() {
-    const layoutSiderContext = inject('layoutSiderContext', {});
+    const layoutSiderContext = inject<SiderContextProps>('layoutSiderContext', {});
     const layoutSiderCollapsed = toRef(layoutSiderContext, 'sCollapsed');
     return {
       configProvider: inject('configProvider', defaultConfigProvider),
       layoutSiderContext,
       layoutSiderCollapsed,
+      propsUpdating: false,
+      switchingModeFromInline: false,
+      leaveAnimationExecutedWhenInlineCollapsed: false,
+      inlineOpenKeys: [],
     };
   },
-  // model: {
-  //   prop: 'selectedKeys',
-  //   event: 'selectChange',
-  // },
   updated() {
     this.propsUpdating = false;
   },
@@ -96,15 +108,12 @@ const Menu = defineComponent({
     },
   },
   data() {
-    const props = getOptionProps(this);
+    const props: MenuProps = getOptionProps(this);
     warning(
       !('inlineCollapsed' in props && props.mode !== 'inline'),
       'Menu',
       "`inlineCollapsed` should only be used when Menu's `mode` is inline.",
     );
-    this.switchingModeFromInline = false;
-    this.leaveAnimationExecutedWhenInlineCollapsed = false;
-    this.inlineOpenKeys = [];
     let sOpenKeys;
 
     if ('openKeys' in props) {
@@ -244,7 +253,7 @@ const Menu = defineComponent({
     const menuOpenAnimation = this.getMenuOpenAnimation(menuMode);
     const { class: className, ...otherAttrs } = this.$attrs;
     const menuClassName = {
-      [className]: className,
+      [className as string]: className,
       [`${prefixCls}-${theme}`]: true,
       [`${prefixCls}-inline-collapsed`]: this.getInlineCollapsed(),
     };
@@ -297,7 +306,7 @@ const Menu = defineComponent({
 });
 
 /* istanbul ignore next */
-Menu.install = function(app) {
+Menu.install = function(app: App) {
   app.component(Menu.name, Menu);
   app.component(Menu.Item.name, Menu.Item);
   app.component(Menu.SubMenu.name, Menu.SubMenu);
diff --git a/components/menu/style/index.js b/components/menu/style/index.ts
similarity index 100%
rename from components/menu/style/index.js
rename to components/menu/style/index.ts
diff --git a/components/tooltip/Tooltip.tsx b/components/tooltip/Tooltip.tsx
index 9e05524fa..a466b060a 100644
--- a/components/tooltip/Tooltip.tsx
+++ b/components/tooltip/Tooltip.tsx
@@ -1,4 +1,4 @@
-import { defineComponent, inject } from 'vue';
+import { defineComponent, ExtractPropTypes, inject } from 'vue';
 import VcTooltip from '../vc-tooltip';
 import classNames from '../_util/classNames';
 import getPlacements from './placements';
@@ -27,13 +27,18 @@ const splitObject = (obj: any, keys: string[]) => {
   return { picked, omitted };
 };
 const props = abstractTooltipProps();
+
+const tooltipProps = {
+  ...props,
+  title: PropTypes.VNodeChild,
+};
+
+export type TooltipProps = Partial<ExtractPropTypes<typeof tooltipProps>>;
+
 export default defineComponent({
   name: 'ATooltip',
   inheritAttrs: false,
-  props: {
-    ...props,
-    title: PropTypes.VNodeChild,
-  },
+  props: tooltipProps,
   emits: ['update:visible', 'visibleChange'],
   setup() {
     return {
@@ -192,7 +197,7 @@ export default defineComponent({
       [openClassName || `${prefixCls}-open`]: sVisible,
       [child.props && child.props.class]: child.props && child.props.class,
     });
-    const tooltipProps = {
+    const vcTooltipProps = {
       ...$attrs,
       ...$props,
       prefixCls,
@@ -205,7 +210,7 @@ export default defineComponent({
       onPopupAlign: this.onPopupAlign,
     };
     return (
-      <VcTooltip {...tooltipProps}>
+      <VcTooltip {...vcTooltipProps}>
         {sVisible ? cloneElement(child, { class: childCls }) : child}
       </VcTooltip>
     );
diff --git a/components/tooltip/index.ts b/components/tooltip/index.ts
index a3b35afd7..1e41360cf 100644
--- a/components/tooltip/index.ts
+++ b/components/tooltip/index.ts
@@ -1,6 +1,8 @@
 import { App } from 'vue';
 import ToolTip from './Tooltip';
 
+export { TooltipProps } from './Tooltip';
+
 /* istanbul ignore next */
 ToolTip.install = function(app: App) {
   app.component(ToolTip.name, ToolTip);
diff --git a/components/vc-mentions/src/mentionsProps.ts b/components/vc-mentions/src/mentionsProps.ts
index d2aacc16b..a3b391af6 100644
--- a/components/vc-mentions/src/mentionsProps.ts
+++ b/components/vc-mentions/src/mentionsProps.ts
@@ -1,6 +1,6 @@
 import { PropType } from 'vue';
 import PropTypes from '../../_util/vue-types';
-import initDefaultProps from '../../_util/props-util/initDefaultProps';
+import { initDefaultProps } from '../../_util/props-util';
 import {
   filterOption as defaultFilterOption,
   validateSearch as defaultValidateSearch,
@@ -20,12 +20,8 @@ export const mentionsProps = {
   placement: PropTypes.oneOf(PlaceMent),
   character: PropTypes.any,
   characterRender: PropTypes.func,
-  filterOption: {
-    type: [Boolean, Function] as PropType<false | typeof defaultFilterOption>,
-  },
-  validateSearch: {
-    type: Function as PropType<typeof defaultValidateSearch>,
-  },
+  filterOption: PropTypes.func,
+  validateSearch: PropTypes.func,
   getPopupContainer: {
     type: Function as PropType<() => HTMLElement>,
   },
diff --git a/components/vc-menu/Menu.jsx b/components/vc-menu/Menu.jsx
index 66e1968e9..cc88bd8cd 100644
--- a/components/vc-menu/Menu.jsx
+++ b/components/vc-menu/Menu.jsx
@@ -47,7 +47,7 @@ const Menu = {
     this.updateMiniStore();
   },
   methods: {
-    onSelect(selectInfo) {
+    handleSelect(selectInfo) {
       const props = this.$props;
       if (props.selectable) {
         // root menu
@@ -70,7 +70,7 @@ const Menu = {
       }
     },
 
-    onClick(e) {
+    handleClick(e) {
       this.__emit('click', e);
     },
     // onKeyDown needs to be exposed as a instance method
@@ -112,7 +112,7 @@ const Menu = {
       }
     },
 
-    onDeselect(selectInfo) {
+    handleDeselect(selectInfo) {
       const props = this.$props;
       if (props.selectable) {
         const selectedKeys = this.store.getState().selectedKeys.concat();
@@ -172,10 +172,10 @@ const Menu = {
       overflowedIndicator: getComponent(this, 'overflowedIndicator', props) || <span>···</span>,
       openTransitionName: this.getOpenTransitionName(),
       children: filterEmpty(props.children),
-      onClick: this.onClick,
+      onClick: this.handleClick,
       onOpenChange: this.onOpenChange,
-      onDeselect: this.onDeselect,
-      onSelect: this.onSelect,
+      onDeselect: this.handleDeselect,
+      onSelect: this.handleSelect,
       ref: this.saveInnerMenu,
     };