react webpack configuration

package.json

{
  "name": "react-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-scripts": "1.1.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "devDependencies": {
    "babel-core": "^6.26.0",
    "babel-loader": "^7.1.4",
    "babel-preset-env": "^1.6.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-stage-0": "^6.24.1",
    "css-loader": "^0.28.10",
    "postcss-loader": "^2.1.1",
    "style-loader": "^0.20.3",
    "svg-inline-loader": "^0.8.0"
  }
}

setting webpack

# javascript
$ npm install babel-core babel-loader babel-preset-env babel-preset-react babel-preset-stage-0 --save-dev

# css
$ npm install style-loader css-loader postcss-loader --save-dev

# svg
$ npm install svg-inline-loader --save-dev

# webpack cli
$ npm install webpack-cli -g

webpack.config.js

module.exports = {
  entry: './src/index.js',
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /(node_modules)/,
        loader: 'babel-loader',
        query: {
          presets: ['env', 'stage-0', 'react']
        }
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader', {
          loader: 'postcss-loader',
          options: {
            plugins: () => [require('autoprefixer')]
          }
        }]
      },
      {
        test: /\.svg$/,
        loader: 'svg-inline-loader'
      }
    ]
  }
}