TypeScript
I didn't like TS at first, but with time it became one of my favorite pieces of technology. It enables us to significantly improve safety of our code and, my favorite, provide mich better DX. There are plently of TS tutorials on the web, so in my articles I focus mostly on advanced concepts and practical tips.

6 advanced TypeScript tricks
TypeScript's type system can play DOOM. Surely we can make it do something useful for our projects too, right?

Did you know you can write your own typesafe React router in 500 lines?
There are a lot of things you can do for yourself. One of them is simple type-safe React routing library. Sounds good, doesn't it?