. ├── dest │ └── app.js ├── index.html ├── package.json └── src └── app.jsx { "devDependencies": { "babel-preset-es2015": "^6.3.13", "babel-preset-react": "^6.3.13", "babelify": "^7.2.0", "browserify": "^12.0.1", "watchify": "^3.6.1" }, "scripts": { "build": "browserify src/app.jsx -o dest/app.js -t [ babelify --presets [ es2015 react ] ]", "watch": "watchify -t [ babelify --presets [ es2015 rea