function
boot.janet on line 895, column 1
(map f & inds)
Map a function over every element in an indexed data structure and
return an array of the results.
(map |(+ $0 $1) [1 2 3] [4 5 6]) # @[5 7 9] - uses the fn shorthand
(map string/from-bytes "Hello, world!") # => @["H" "e" "l" "l" "o" "," " " "w" "o" "r" "l" "d" "!"]