Sergey Barkovskiy SBarkovskiy
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| Protocols and Extensions | |
| Use protocol to declare a protocol. | |
| protocol ExampleProtocol { | |
| var simpleDescription: String { get } | |
| mutating func adjust() | |
| } | |
| Classes, enumerations, and structs can all adopt protocols. |
SBarkovskiy
/ Leap Years.txt
Last active
September 21, 2017 19:23
Into to App Development with Swift Exercice 11 Leap Years
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| /*: | |
| ## Exercise: Leap Years | |
| To decide if a year is a leap year, there are several decisions that have to be made: | |
| - Is the year divisible by 4? | |
| - If so, is the year divisible by 100? | |
| - If not, it is a leap year. | |
| - If so, is the year divisible by 400? | |
| - If not, it is **not** a leap year. |