If you want to start a project in pure JavaScript it is one of the options of project structure. I was faced with this problem, considered a lot of projects and collect this one.
The project structure is divided into two parts, the frontend and backend. This two parts are very similar in structure using **MVC**. The app works on the principle of building ui based on data from the backend as **JSON**.
Also in this project you can find a few examples (authorization using passport, test coverage on frontend, etc.)
[Github](https://github.com/ButuzGOL/gss)
[Demo](http://butuzgol-gss.herokuapp.com/) (email@email.com:password)
In our days there a lot of javascript client and backend side frameworks. But for best understanding we should do practice, so I created repo to write there the same app "cash machine" using different frameworks.
The app has two sides back and client. On back there is api and on client there is ui.
Website: [Cash Machine](https://butuzgol.github.io/cashmachine/)
Repo: [Github](https://github.com/ButuzGOL/cashmachine/)
It's something similar to [TodoMVC](https://github.com/tastejs/todomvc)
It is very small framework but I think it has all needed things for building website. Also it is very light, you can see it on