Operation & OperationQueue
Operations are an object-oriented way to encapsulate work that you want to perform asynchronously. Operations are designed to be used
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Thread
Dispatch Group
Grand Central Dispatch (GCD) is a framework provided by Apple that was released in 2009 with OS X Snow Leopard
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DispatchSemaphore
An object that controls access to a resource across multiple execution contexts through use of a traditional counting semaphore. A
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Swift Concurrency: Introduction
What is concurrency? Logic of your app to determine which pieces can run at the same time, and possible in
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