React memo

React forwardref

const FancyButton = React.forwardRef((props, ref) => (
  <button ref={ref} className="FancyButton">
    {props.children}
  </button>
));

// You can now get a ref directly to the DOM button:
const ref = React.createRef();
<FancyButton ref={ref}>Click me!</FancyButton>;

Source: reactjs.org

React memo

/* this is for es6 onward */
/* React.memo is the new PureComponent */

import React, { memo } from 'react'

const MyComponent = () => {
 return <>something</>
}

export default memo(MyComponent)

Import React, { memo } from 'react';

const MyComponent = React.memo(function MyComponent(props) {
  /* only rerenders if props change */
});

Source: reactjs.org

How to add react.memo in export list

export const MemoMainPostTopic = React.memo(MainPostTopic);
 

//or

const MainPostTopic = memo(() => {
 ...
})
export { MainPostTopic };

Source: stackoverflow.com

Similar codes

1 vote128 views1 answer
Docker react module not found
Javascript React
-2 votes115 views1 answer
<Link> react import
Javascript React
0 vote127 views1 answer
Images not displaying in react
Javascript React
0 vote133 views1 answer
Add pdf in react app
Javascript React
0 vote128 views1 answer
React overflow scroll
Javascript React
8 votes132 views2 answers
Set value as object in react hooks
Javascript React
-2 votes121 views1 answer
Redux template create react app
Javascript React
0 vote116 views1 answer
Why can't i move my react bootstrapmodal over to the left
Javascript React
0 vote133 views1 answer
Ui5 React bind element
Javascript React
3 votes134 views1 answer
React router Link does work
Javascript React