webpack4.X搭建伺服器和實作熱更新

我貼上webpack.config.js，和package.json。

webpack.config.js

關注output

const path = require('path');

module.exports = {
    entry: './app/index.js',
    mode:'development',   
    output: {
        path: path.resolve(__dirname, 'dist'),
        publicPath: '/assets',
        filename: 'main.js'
    },
    module: {
        rules: [{
            test: /\.(js|jsx)$/,
            exclude: /(node_modules)/,
            use: {
                loader: "babel-loader",
            }         
        },{
            test: /\.(le|c)ss$/,
            use:[
                {
                    loader:"style-loader"
                },{
                    loader:"css-loader"
                },{
                    loader:"less-loader"
                }
            ]
        }
        ]
    },
    watch:true

};
           

package.json

{
  "name": "02_Helloworld",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "dev": "webpack-dev-server --env development"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.5.5",
    "@babel/preset-env": "^7.5.5",
    "@babel/preset-react": "^7.0.0",
    "babel-loader": "^8.0.6",
    "css-loader": "^3.1.0",
    "html-webpack-plugin": "^3.2.0",
    "jquery": "^3.4.1",
    "less": "^3.9.0",
    "less-loader": "^5.0.0",
    "prop-type": "0.0.1",
    "prop-types": "^15.7.2",
    "react": "^16.8.6",
    "react-dom": "^16.8.6",
    "react-redux": "^7.1.0",
    "redux": "^4.0.4",
    "redux-logger": "^3.0.6",
    "style-loader": "^0.23.1",
    "webpack": "^4.38.0",
    "webpack-cli": "^3.3.6",
    "webpack-dev-server": "^3.7.2"
  }
}
           

關注dev