Programare swift Swift tutorial from tutorials point | Page 8

Swift 4
19. SWIFT 4 – CLOSURES ......................................................................................................... 87
Expressions in Closures ......................................................................................................................... 88
Single Expression Implicit Returns ......................................................................................................... 89
Known Type Closures ............................................................................................................................ 90
Declaring Shorthand Argument Names as Closures ............................................................................... 90
Closures as Operator Functions ............................................................................................................. 91
Closures as Trailers ................................................................................................................................ 91
Capturing Values and Reference Types ................................................................................................. 92
20. SWIFT 4 – ENUMERATIONS ............................................................................................... 94
Enumeration Functionality .................................................................................................................... 94
Enumeration with Switch Statement ..................................................................................................... 95
Difference between Associated Values and Raw Values........................................................................ 96
Enum with Associated Values ................................................................................................................ 96
Enum with Raw Values .......................................................................................................................... 97
21. SWIFT 4 – STRUCTURES ..................................................................................................... 98
Definition of a Structure ........................................................................................................................ 98
Accessing the Structure and its Properties ............................................................................................ 98
Best Usage Practices of Structures ...................................................................................................... 100
22. SWIFT 4 – CLASSES .......................................................................................................... 102
Class Identity Operators ...................................................................................................................... 104
23. SWIFT 4 – PROPERTIES .................................................................................................... 106
Stored Properties ................................................................................................................................ 106
Lazy Stored Property ........................................................................................................................... 107
Instance Variables ............................................................................................................................... 108
Computed Properties .......................................................................................................................... 108
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