You scratch the surface here with your advice. As someone who codes for a living I think I'm qualified to add a quick comment to this post. You are correct in assuming the short list you provide will get you up and running. However, I could break even each learning point you have provided into a complete course in its own. Variables alone is a broad subject. Yes the idea of a variable is easy but the differences are huge. In order to understand what I'm referring too, look into data length. A string in one language may mean 255 bytes, it may be a completely different value for another language. In one language you may be able to populate 'a' string with 254 characters max, in another you can use all 255.

Logical operations...And, Or, Not you better believe syntax will play a role across different platforms.

Not trying to pick your post apart but it reads like the contents of subjects you should start talking in depth about in here.

My advice. Really learn why what you code is doing what it does. By understanding, truly understanding what is going on is the right way to program anything. There are far to many hacks out there. Not enough true coders.

Look forward to your next article.