#157
Indexing Sequences
Difficulty: | Easy |
Topics: | seqs |
Transform a sequence into a sequence of pairs containing the original
elements along with their index.
(= (__ [:a :b :c]) [[:a 0] [:b 1] [:c 2]]) | |
(= (__ [0 1 3]) '((0 0) (1 1) (3 2))) | |
(= (__ [[:foo] {:bar :baz}]) [[[:foo] 0] [{:bar :baz} 1]]) |