Does the opposite of split.
This is like Perl’s join function. This is not really any more efficient than concatenate-as, but it’s more convenient.
join(":", word1, word2, word3)is equivalent to
concatenate(word1, ":", word2, ":", word3)
(and is no more efficient).
| delimiter | An instance of <byte-string>. |
| #rest strings | Instances of <byte-string>. |
| big-string | An instance of <byte-string>. |