Late last year I mentioned a nice introductory guide to using the guard and defer statements added within Swift 2.0.
Here’s a nice guide from Benedikt Terhechte that goes a little bit more in-depth providing a number of tips on using guard statements to make your code more readable and concise.
In the tutorial Benedikt goes through a number of code samples, and shows how they can be further simplified using guard statements.
You can find the tutorial on the Appventure blog.
A nice guide on using guard statements in Swift.
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