macro
boot.janet on line 570 , column 1
(eachp x ds & body )
Loop over each (key , value ) pair in `ds` . Returns nil.
(eachp [k v ] {:a "a val" :b "b val" :c "c val" } (print k " - " v ))
# prints c - c val
# prints a - a val
# prints b - b val