update: --

Author: webVueBlog

README.md

@@ -258,6 +258,7 @@
 - [context](./react/context.md)
 - [concurrent-mode](./react/concurrent-mode.md)
 - [Hooks](./react/Hooks.md)
+- [Others](./react/Others.md)
 
 
 ## 常见问题及解答

react/Others.md

@@ -0,0 +1,20 @@
+```js
+import isValidElementType from 'shared/isValidElementType';
+import warningWithoutStack from 'shared/warningWithoutStack';
+
+export default function memo<Props> (
+ type: React$ElementType,
+ compare?: (oldProps: Props, newProps: Props) => boolean,
+) {
+ if(__DEV__) {}
+ return {
+  $$typeof: REACT_MEMO_TYPE,
+  type,
+  compare: compare === undefined ? null : compare,
+ }
+}
+
+// Fragment: REACT_FRAGMENT_TYPE
+// StrictMode: REACT_STRICT_MODE_TYPE
+// ReactElement
+```