Some sites I’ve used in my learning journey.
w3schools – if I just want a quick example, forgot how to do it, forgot the syntax, quick glance of what’s available.
Mozilla Developer network - while complete, it can be very complex sometimes… giving more than I what I ask for, which I don’t always want all the time.
Udemy courses – from just a few select people… I wait until it goes on sale for $10 then I pounce on it. A lot of the free ones are crap though. So be selective.
Youtube – some gems here from a few select people.
Books – very rarely I buy REAL books. It’s expensive. But when I do pay for it, I do get a lot out of the book. Maybe I’m trying to get back my $40-$50 I spent on it. This tends to be the best-bang-for-the-buck for me, where I learn a lot.
Dash – this is an OSX program, where I have all the documentation for every possible thing right on my desktop. These are the official documentation from the websites, packaged for convenience right on your desktop.