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ios - What is self used for in Swift? - Stack Overflow I am new to Swift and I'm wondering what self is used for and why I have seen it in classes and structures but I really don't find them essential nor necessary to even mention them in my code Wh
How to check object is nil or not in swift? - Stack Overflow This question is similar to: Swift: Testing optionals for nil If you believe it’s different, please edit the question, make it clear how it’s different and or how the answers on that question are not helpful for your problem
swift2 - Swift: guard let vs if let - Stack Overflow The Swift Docs on Control Flow explain the idea behind that: Using a guard statement for requirements improves the readability of your code, compared to doing the same check with an if statement
How to find index of list item in Swift? - Stack Overflow I am trying to find an item index by searching a list Does anybody know how to do that? I see there is list StartIndex and list EndIndex but I want something like python's list index("text")