This content was released on Dec 6 2016. The official support period is 6-months from this date.
Learn how to wrap a synchronous function to make it asynchronous, and how to handle simple use cases — a chain of synchronous tasks and a collection of similar independent tasks.
This is a companion discussion topic for the original entry at https://www.kodeco.com/3648-ios-concurrency-with-gcd-and-operations/lessons/3