Dates, Formatting, and Text

Split and Join Text

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

Recombine words

separator
split_join_text.swift
Replay: real traced execution (multi-file project)
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)

  1. separator ← /, text ← swift trace replay, words ← ["swift", "trace", "replay"]

    1let separator→ / = "/"  //@separator="-", "|"2let text→ swift trace replay = "swift trace replay"3let words→ ["swift", "trace", "replay"] = textswift trace replay.split(separator: " ")4let message→ swift/trace/replay = words["swift", "trace", "replay"].joined(separator: separator/)56print(messageswift/trace/replay)
    outputswift/trace/replay

  1. separator ← -, text ← swift trace replay, words ← ["swift", "trace", "replay"]

    1let separator→ - = "-"2let text→ swift trace replay = "swift trace replay"3let words→ ["swift", "trace", "replay"] = textswift trace replay.split(separator: " ")4let message→ swift-trace-replay = words["swift", "trace", "replay"].joined(separator: separator-)56print(messageswift-trace-replay)
    outputswift-trace-replay

  1. separator ← |, text ← swift trace replay, words ← ["swift", "trace", "replay"]

    1let separator→ | = "|"2let text→ swift trace replay = "swift trace replay"3let words→ ["swift", "trace", "replay"] = textswift trace replay.split(separator: " ")4let message→ swift|trace|replay = words["swift", "trace", "replay"].joined(separator: separator|)56print(messageswift|trace|replay)
    outputswift|trace|replay
split join `split` separates a string into parts, and `joined` combines those parts with a chosen separator.