The zipping function

Higher-order Functions - slide 19 : 34

The function zip.

Expression	Value
(zip cons '(1 2 3) '(a b c))	((1 . a) (2 . b) (3 . c))
(apply string-append (zip string-append '("Rip" "Rap" "Rup") '(", " ", and " "")))	"Rip, Rap, and Rup"
(string-merge '("Rip" "Rap" "Rup") '(", " ", and "))	"Rip, Rap, and Rup"

Zip is similar to the function string-merge from the LAML general library

However, string-merge handles lists of strings non-equal lengths, and it concatenates the zipped results