high-order-component

Here is a somewhat useful example with strings: Swift 3.0 let joiner = “:” let elements = [“one”, “two”, “three”] let joinedStrings = elements.joined(separator: joiner) print(“joinedStrings: \(joinedStrings)”) output: joinedStrings: one:two:three Swift 2.0 var joiner = “:” var elements = [“one”, “two”, “three”] var joinedStrings = elements.joinWithSeparator(joiner) print(“joinedStrings: \(joinedStrings)”) output: joinedStrings: one:two:three Swift 1.2: var joiner … Read more