How to program a delay in Swift 3

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After a lot of research, I finally figured this one out.

DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { // Change `2.0` to the desired number of seconds.
   // Code you want to be delayed
}

This creates the desired “wait” effect in Swift 3 and Swift 4.

Inspired by a part of this answer.

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