npm vs yarn
index.html -> srcipt src="/dist/bundle.js"
src-
| utils.js -> 'export'
|index.js -> 'import'
webpack.comfig.js -> "start","build"
npm run start
npm vs yarn
index.html -> srcipt src="/dist/bundle.js"
src-
| utils.js -> 'export'
|index.js -> 'import'
webpack.comfig.js -> "start","build"
npm run start
