comparing how two maps behave on a lazy sequence vs a vector in clojure

laziness

clj.core> (let [s1 (->> '(1 2 3)
                     (map #(do (println (* 10 %)) %))
                     (map #(do (println %) %)))
                ]
            s1)
10
1
20
2
30
3
(1 2 3)
clj.core> (let [s1 (->> [1 2 3]
                     (map #(do (println (* 10 %)) %))
                     (map #(do (println %) %)))
                ]
            s1)
10
20
30
1
2
3
(1 2 3)