List Comprehensions and Performance With Swift

This post written on August 15, 2015 to be compatible with Xcode 6 and Swift 1.2 List comprehensions provide a concise way to create lists. You can accomplish list comprehension-like operations in Swift even though list comprehensions are not mentioned in the Swift language guide. Say you want to create a list of squares, like: var squares = [Int]()for x…

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