webpack babel

package.json

{
  "name": "Babel",
  "version": "1.0.0",
  "description": "",
  "main": "webpack.config.js",
  "scripts": {
    "watch": "webpack --mode development --watch",
    "start": "webpack --mode development",
    "deploy": "webpack --mode production"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.0.0",
    "@babel/preset-env": "^7.0.0",
    "babel-loader": "^8.0.2",
    "webpack": "^4.21.0",
    "webpack-cli": "^3.1.2"
  }
}