# \[WEBPACK] 5. Webpack : Tạo Project ReactJS (

Ví dụ đã hoàn thành :)

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## Chú ý: Ta có thể viết gọn babel-loader

```
babel-loader như sau :))
```

C:\Users\Administrator\Desktop\abc\webpack.config.js

## Trước

```
const path = require('path');

module.exports = {
  entry: './src/app.js',
  output: {
    path: path.join(__dirname, 'public'),
    filename: 'bundle.js'
  },
  module: {
    rules: [{
        test: /\.js$/,
        exclude: /node_modules/,
        use: [{
          loader: 'babel-loader',
          options: {
            presets: ["@babel/preset-env", "@babel/preset-react"],
            plugins: [
              '@babel/plugin-proposal-class-properties'
            ]

          }
        }]
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      }
    ]
  },
  devtool: 'cheap-module-eval-source-map',
  devServer: {
    contentBase: path.join(__dirname, 'public')
  }
};
```

C:\Users\Administrator\Desktop\abc\webpack.config.js

## Sau&#x20;

```
const path = require('path');

module.exports = {
  entry: './src/app.js',
  output: {
    path: path.join(__dirname, 'public'),
    filename: 'bundle.js'
  },
  module: {
    rules: [{
        test: /\.js$/,
        exclude: /node_modules/,
        use: [{
          loader: 'babel-loader',
        }]
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      }
    ]
  },
  devtool: 'cheap-module-eval-source-map',
  devServer: {
    contentBase: path.join(__dirname, 'public')
  }
};
```

C:\Users\Administrator\Desktop\abc.babelrc

```
{
	"presets": ["@babel/preset-env", "@babel/preset-react"],
	"plugins": ["@babel/plugin-proposal-class-properties"]
}
```

Đọc thêm&#x20;

<https://viblo.asia/p/reactjs-ket-hop-voi-webpack-part-1-Eb85ogr052G>

<https://viblo.asia/p/tu-setup-reactjs-project-co-ban-voi-webpack-4-va-babel-7-phan-1-63vKj2pxK2R>

<https://hashinteractive.com/blog/complete-guide-to-webpack-configuration-for-react/>

C:\Users\Administrator\Desktop\webpack\package.json

```
{
  "name": "webpack",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "webpack --mode production"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.11.6",
    "@babel/preset-env": "^7.11.5",
    "@babel/preset-react": "^7.10.4",
    "babel-loader": "^8.1.0",
    "html-loader": "^1.3.1",
    "html-webpack-plugin": "^4.5.0"
  },
  "dependencies": {
    "react": "^16.13.1",
    "react-dom": "^16.13.1",
    "webpack": "^4.44.2",
    "webpack-cli": "^3.3.12"
  }
}

```

C:\Users\Administrator\Desktop\webpack\webpack.config.js

```
const HtmlWebPackPlugin = require("html-webpack-plugin");
module.exports = {
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader"
        }
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: "html-loader"
          }
        ]
      }
    ]
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./src/index.html",
      filename: "./index.html"
    })
  ]
};
```

Hoặc chúng ta có thể chỉnh định tên thư mục và file trong trường hợp này là public và bundle.js

```
var path = require('path');
const HtmlWebPackPlugin = require("html-webpack-plugin");
module.exports = {
  output: {
    path: path.resolve(__dirname, 'public'),
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader"
        }
      },
      {
        test: /\.html$/,
        use: [
          {
            loader: "html-loader"
          }
        ]
      }
    ]
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./src/index.html",
      filename: "./index.html"
    })
  ]
};
```

C:\Users\Administrator\Desktop\webpack\src\index.html

```
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>How to set up React, Webpack, and Babel</title>
</head>
<body>
<div id="container"></div>
</body>
</html>
```

C:\Users\Administrator\Desktop\webpack\src\js\components\Form.js

```
import React, { Component } from "react";
import ReactDOM from "react-dom";
class Form extends Component {
  constructor() {
    super();
    this.state = {
      value: ""
    };
    this.handleChange = this.handleChange.bind(this);
  }
  handleChange(event) {
    const { value } = event.target;
    this.setState(() => {
      return {
        value
      };
    });
  }
  render() {
    return (
      <form>
        <input
          type="text"
          value={this.state.value}
          onChange={this.handleChange}
        />
      </form>
    );
  }
}
export default Form;
const wrapper = document.getElementById("container");
wrapper ? ReactDOM.render(<Form />, wrapper) : false;
```

C:\Users\Administrator\Desktop\webpack\src\index.js

```
import Form from "./js/components/Form";
```

C:\Users\Administrator\Desktop\webpack.babelrc

```
{
	"presets": ["@babel/preset-env","@babel/preset-react"]
}
```


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