今日の作業ログ

これは作業ログです。

作業内容

今日はwebpack hot module replacementの設定をしました。

今作っているやつのpackage.jsonとwebpack.config.jsを触っていました。

package.json

{
  "name": "frontend",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "webpack-dev-server",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "actioncable": "^5.0.0",
    "babel-core": "^6.18.2",
    "babel-loader": "^6.2.7",
    "babel-preset-es2015": "^6.18.0",
    "babel-preset-react": "^6.16.0",
    "material-ui": "^0.16.5",
    "normalize.css": "^5.0.0",
    "react": "^15.3.2",
    "react-dom": "^15.3.2",
    "react-redux": "^4.4.5",
    "react-tap-event-plugin": "^2.0.1",
    "redux": "^3.6.0",
    "redux-thunk": "^2.1.0",
    "webpack": "^1.13.3",
    "webpack-dev-server": "^1.16.2",
    "webpack-init": "^0.1.2",
    "whatwg-fetch": "^2.0.1"
  }
}

webpack.config.js

var webpack = require('webpack');

module.exports = {
  entry: './app/index.js',
  output: {
    path: '/',
    filename: 'bundle.js',
    publicPath: '/'
  },
  module: {
    loaders: [
      { test: /\.js$/, exclude: /node_modules/, loader: "babel-loader" }
    ]
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
  ],
  devServer: {
    port: '4000',
    contentBase: './build',
    inline: true,
    hot: true
  }
}

ハマったところ

Uncaught Error: [HMR] Hot Module Replacement is disabled. とか言われてブチギレていました

  plugins: [
    new webpack.HotModuleReplacementPlugin(),
  ],

を書いていなかったのが原因でした。

以上