RxSwift: Of Operator

• .of takes a variadic parameter.
• Creates an observable of the specified type (Not an array of that type unless you provide the parameter as an array).
• Type inference kicks in here so the type is not needed.

let lotteryNumberOne = 1
let lotteryNumberTwo = 2
let lotteryNumberThree = 3

let observable = Observable.of(lotteryNumberOne, lotteryNumberTwo, lotteryNumberThree)
// Observable of Int

let observable = Observable.of([lotteryNumberOne, lotteryNumberTwo, lotteryNumberThree])
// Observable ARRAY of Int

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