May 2018
Beginner
252 pages
6h 19m
English
The repend word works in the same way as append, but repend first evaluates (or reduces—the re comes from reduce) the series to be added:
repend [10 11 12] [8 + 5 "pi"] ;== [10 11 12 13 "pi"]
As always, with /only, the added series stays a series:
repend/only [10 11 12] [8 + 5 "pi"] ;== == [10 11 12 [13 "pi"]]