Extending

Chain two collections end-to-end, or repeat a collection forever or a specific number of times.

Overview

Chaining two collections

let letters = chain("abcd", "EFGH")
// String(letters) == "abcdEFGH"

for (num, letter) in zip((1...3).cycled(), letters) { 
    print(num, letter)
} 
// 1 a
// 2 b
// 3 c
// 1 d
// 2 E
// 3 F
// 1 G
// 2 H

Topics

Chaining Two Collections

• chain(_:_:)

Cycling a Collection

• Swift/Collection/cycled()
• Swift/Collection/cycled(times:)

Supporting Types

• Chain2Sequence
• CycledSequence
• CycledTimesCollection