tree-shaking webpack package.json

package.json

{
  "name": "",
  "version": "1.0.0",
  "description": "",
  "main": "",
  "scripts": {
    "start": "webpack --config webpack.config.js",
    "build": "webpack -p --config webpack.config.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-core": "^6.22.1",
    "babel-loader": "^6.2.10",
    "babel-preset-es2015": "^6.22.0",
    "webpack": "^2.2.1"
  }
}