Develop your understanding of serial vs. concurrent queues and synchronous vs. asynchronous dispatch.
This is a companion discussion topic for the original entry at https://www.kodeco.com/9461083-ios-concurrency-with-gcd-and-operations/lessons/3
This is a companion discussion topic for the original entry at https://www.kodeco.com/9461083-ios-concurrency-with-gcd-and-operations/lessons/3