Proper application development on ionic framework?

Question

Mobile development

I decided to set out to develop a mobile application on ionic, downloaded sdk and android studio, installed the framework itself. In the tutorials that I found:
the link to the tutorial
says to go to the www folder and connect the scripts. BUT there are no such files in the www folder. And the directory structure is very different. In the www folder, as I understand it, there is an assembly. Lessons for sure under the old version of ionic. And I can’t find lessons for Ionic 3. Everywhere it is written go to the myApp\www\js\app.js folder, etc. but I don't have such a file. There is not even a www/js folder.
Although after running the ionic serve command, the project launches in the browser as expected and works. Tell me the right direction in studying application examples for this particular version, where to start, where to go.

Answer 1

Here