How do I write Ruby's each_cons in Clojure?

Question

How can I rewrite this Ruby code in Clojure?

seq = [1, 2, 3, 4, 5].each_cons(2) 
#=> lazy Enumerable of pairs
seq.to_a
=> [[1, 2], [2, 3], [3, 4], [4, 5]]

Clojure:

(??? 2 [1 2 3 4 5])
;=> lazy seq of [1 2] [2 3] [3 4] [4 5]

Answer 1

What you are asking for is called sliding window over a lazy sequence.This way you can achieve that

user=> (partition 2 1 [1 2 3 4 5])
((1 2) (2 3) (3 4) (4 5))