Great article and good tips. I personally still use forEach in certain situations - situations where I do not care about the return value of the operation. For example, deleting items in a database based on the items in an array. In most other cases, the higher-order array functions should be preferred.

I typically only watch tutorials when I'm trying to build something with the technology in question e.g react. I don't usually follow the example used in the tutorial. I just watch and see how things are done and get started on my project immediately. I stackoverflow whatever else I need. Tutorials are good, but tutorial hell is real. Most people keep watching tutorials hoping to become experts by watching. You don't become an expert by watching. You become an expert by doing!