I agree, and yes, the line may be a bit excessive. The idea of Arrays is not just to cram a heap of functions to a single line. The readability (at least to me)

I agree, and yes, the line may be a bit excessive. The idea of Arrays is not just to cram a heap of functions to a single line. The readability (at least to me) is improved even with e.g. a single map arr.map(func) vs. list(map(func, arr))