Looking the SharePoint Stack Exchange tour I found difficult to ask questions about references for learning SharePoint development.
I know there's a related question with an accepted answer but I'm wondering if it can be extended for include questions like this one:
How to Develop an App for add it in SharePoint Online.
Here, the how to may be added as a
tag for classify these kind of questions.
The search results on the internet are abundant and they can solve some development requirements, but, since the user who ask the question may not have knowledge in which way the SharePoint custom developments works, I'm hesitating in make this question in the main site.