react, webpack configuration

.babelrc

{
    "presets": ["es2015", "stage-1", "react"]
}

package

{
  "name": "my-app",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "serve": "webpack-dev-server --devtool sourcemap --progress --colors --content-base dist/ --inline",
    "open": "opener http://localhost:8080",
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "npm run open && npm run serve"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-core": "^6.17.0",
    "babel-loader": "^6.2.5",
    "babel-preset-es2015": "^6.16.0",
    "babel-preset-react": "^6.16.0",
    "babel-preset-stage-1": "^6.16.0",
    "babel-preset-stage-3": "^6.17.0",
    "opener": "^1.4.2",
    "webpack": "^1.13.2",
    "webpack-dev-server": "^1.16.1"
  },
  "dependencies": {
    "babel-preset-es2015": "^6.16.0",
    "react": "^15.3.2",
    "react-dom": "^15.3.2"
  }
}

webpack.config

var path = require("path");

module.exports = {
    entry: "./src/index.js",
    output: {
        filename: "bundle.js",
        path: path.resolve(__dirname, "dist")
    },
    module: {
        loaders: [
            {
                test: /\.js$/,
                loader: "babel"
            }
        ]
    }
}