Ask HN: Some important/interesting YouTube channels 4 dev/programmer you follow?

I love the funfunfunctions series where he covers advanced programming topics and functional programming in javascript.

https://www.youtube.com/channel/UCO1cgjhGzsSYb1rsB4bFe4Q

I remembered that this question was asked recently; and lo-and-behold---

https://news.ycombinator.com/item?id=12702651

Beau teaches Javascript paired with your own reading is great.

https://www.youtube.com/playlist?list=PLWKjhJtqVAbk2qRZtWSzC...

I follow simple programmer by John Sonmez - https://www.youtube.com/channel/UCFxdcuY-S6yjZGq_2cjilHg