Do Stuff Async Example

do-stuff-async-example.swift

do {
  // Closure
  try self.doStuff(string: "Some string") { result in
    print(result)
  }

  // Promise
  let promise = try self
    .doStuff(string: "Some other string")

  promise.then { result -> Void in
    print(result)
  }

  // Await
  async {
    let result = await(self.doStuff(string: "Yet another string"))
    print(result)
  }

} catch {
  print(error)
}