elementAtExample.swift

import RxSwift

let bestSellingAlbums = [
  (title: "Thriller", salesInMillions: 93),
  (title: "Eagles: Their Greatest Hits 1971-1975", salesInMillions: 41),
  (title: "Hotel California", salesInMillions: 32),
  (title: "Come on Over", salesInMillions: 29),
  (title: "Led Zeppelin IV", salesInMillions: 29),
  (title: "The Bodyguard Soundtrack", salesInMillions: 28),
  (title: "Rumours", salesInMillions: 27),
  (title: "Back in Black", salesInMillions: 26),
  (title: "21", salesInMillions: 25),
  (title: "Jagged Little Pill Year: 1995", salesInMillions: 24),
]

let disposeBag = DisposeBag()

Observable.from(bestSellingAlbums)
  .elementAt(5)
  .subscribe(onNext: {
    print($0)
  })
  .disposed(by: disposeBag)
  
// Output: 
// (title: "The Bodyguard Soundtrack", salesInMillions: 28),