One of the great benefits of downloading the SDK locally is the vast amount of sample code in the SDK that is available.
Some of these samples are hidden away, starting here test-resources\sap\m will uncover some of these.
The first one is the demokit folder, which contains the apps you can see running when you look at the SDK and Demp Apps tab.
These include the below samples
- cart
- poa
- mvc
- splitapp
At the root level of test-resources\sap\m, we have sample pages for each control, and numerous script examples of different configurations and usages. "A picture is worth a thousand words" I think the same goes for code 
And under the folder called quint we have examples of QUnit for each control as well, so a great way to see how you can use QUnit for testing your new applications and web pages.
Hope this helps with the learning.