What one person calls free online courses, others call marketing material These are both. Not just one, nor just the other The knowledge obtained in most of t

What one person calls free online courses, others call marketing material These are both. Not just one, nor just the other The knowledge obtained in most of them is not easily transferable to other technology stack. that is questionable at least. For example for programming laguages they teach both the language and the tools. The language is easily transferable. Well it's not even a transfer, it's just the language [1]. And the tools might be pretty similar depending on which stask you transfer to. [1] apart from possible minor differences of course, like in the C++ compiler. Not sure if there is a difference for things like JavaScript?