[SuperZen]

eval - взоржнул

https://webpack.js.org/guides/
https://webpack.js.org/guides/lazy-loading/
https://webpack.js.org/guides/code-splitting/

или
https://jakearchibald.com/2017/es-modules-in-browsers/

или
https://developer.mozilla.org/en-US/...Web_Components

или MVVM ченить типа react, vue, angular и т.д.