Splitting text creates pieces that can be joined in a new format.

Recombine words

split_join_text.swift
let separator = 
let text = "swift trace replay"
let words = text.split(separator: " ")
let message = words.joined(separator: separator)

print(message)
let separator = 
let text = "swift trace replay"
let words = text.split(separator: " ")
let message = words.joined(separator: separator)

print(message)
let separator = 
let text = "swift trace replay"
let words = text.split(separator: " ")
let message = words.joined(separator: separator)

print(message)
split join `split` separates a string into parts, and `joined` combines those parts with a chosen separator.