For me React docs look really great, but I don't get a lot from them, even though I'd say I understand JS. OTOH Python docs usually look like crap, but I get a sense of understanding.
That has a lot to do with the underlying language actually. This is purely anecdotal but react was the first framework I tried to learn. It was hard for many reasons. One Angular internship and one big vue project later, it was no longer hard. Everything just fell in place. It just clicked. The secret? My JS skills got way better.
