Created
February 1, 2019 18:06
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| class CustomObject { | |
| func value() -> Int { | |
| return 5 | |
| } | |
| func optionalValue() -> Int? { | |
| return nil | |
| } | |
| } | |
| var optionalObject: CustomObject? = CustomObject() | |
| let x = optionalObject?.value() | |
| let y = optionalObject?.optionalValue() | |
| print("Type of x: \(type(of: x))\nType of y: \(type(of: y))") | |
| // Type of x: Optional<Int> | |
| // Type of y: Optional<Int> |
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