I'd be more interested by pointers for Javascript front-end principles, because I feel like I'm lacking some background to understand much of what I'm encounter

I'd be more interested by pointers for Javascript front-end principles, because I feel like I'm lacking some background to understand much of what I'm encountering, whereas there's quite a bit about machine learning (which I haven't checked, still I have good hope it covers the fundamentals). Deduction systems: see https://www.youtube.com/watch?v=R2Aa4PivG0g https://www.youtube.com/watch?v=R2Aa4PivG0g for instance.