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import Cocoa | |
// for-in | |
func checkForIn(array: [Int], dict: [Int: String]) { | |
for num in array where dict[num] != nil { | |
num | |
} | |
} | |
checkForIn([1,2,3,4], dict: [1:"one", 2:"two"]) | |
// do-catch | |
enum MyError: ErrorType { | |
case Oooggh(String) | |
} | |
func errorProne() throws { | |
throw MyError.Oooggh("nope") | |
} | |
do { | |
try errorProne() | |
} catch MyError.Oooggh(let argument) where argument == "agree" { | |
print("oooggh") | |
} catch MyError.Oooggh(let argument) where argument == "nope" { | |
print("oooggh") | |
} | |
// while | |
func checkWhile(inout array: [Int]?) { | |
while let arr = array where arr.count < 5 { | |
array?.append(0) | |
} | |
} | |
var mutableArray:[Int]? = [] | |
checkWhile(&mutableArray) | |
// if | |
func checkIf(string: String?) { | |
if let str = string where str == "checkmate" { | |
print("game over") | |
return | |
} | |
print("let's play") | |
} | |
checkIf("checkmate") | |
// guard | |
func checkGuard(string: String?) { | |
guard let str = string where str != "checkmate" else { | |
print("game over") | |
return | |
} | |
print("let's play") | |
} | |
checkGuard("checkmate") | |
// switch-case | |
var value = (1,2) | |
switch value { | |
case let (x, y) where x == 1: | |
// match 1 | |
break | |
case let (x, y) where x / 5 == 1: | |
// not-match | |
break | |
default: | |
break | |
} | |
// generics | |
func genericFunction<S where S: StringLiteralConvertible>(string: S) { | |
print(string) | |
} | |
genericFunction("lambada") |
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