Swift has named arguments, and it's called "external parameter name". Here's an example taken from Apple's documentation[1]. func join(string s1: String, toS

Swift has named arguments, and it's called "external parameter name". Here's an example taken from Apple's documentation[1]. func join(string s1: String, toString s2: String, withJoiner joiner: String) -> String { return s1 + joiner + s2 } join(string: "hello", toString: "world", withJoiner: ", ") // returns "hello, world" [1]: https://developer.apple.com/library/ios/documentation/swift/conceptual/swift_programming_language/Functions.html https://developer.apple.com/library/ios/documentation/swift/...