Clojure function to successively add vector elements (numbers)

Question

(def coll [10 27 7 12])

Desired result is:

==> (10 37 44 56)

I tried:

(map #(+ % (next %)) coll)

with no success

Answer 1

reductions can do that:

(reductions + [10 27 7 12])
; → (10 37 44 56)