How to implement hot update in react

How to implement hot update in react: 1. Use the "yarn add react-hot-loader -D" command to download "react-hot-loader"; 2. Add "react-hot-loader/babel" to enter ".babelrc" file; 3. Modify the code in App.js to "import { hot } from 'react-hot-loader/root';".

#The operating environment of this tutorial: Windows 10 system, react18 version, Dell G3 computer.

How to implement hot update in react?

[React] create-react-app implements hot update

1. Use the following command line to download react-hot-loader

yarn add react-hot-loader -D

or

npm install react-hot-loader

2. Add react-hot-loader/babel into the .babelrc file

// .babelrc
{
  "plugins": ["react-hot-loader/babel"]
}

3. Modify it to the following code in App.js

// App.js
import { hot } from 'react-hot-loader/root';
const App = () => <div>Hello World!</div>;
export default hot(App);

Recommended learning: "react Video tutorial》

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