swift-data-types.md

Swift 4 Data Types

• Types
  • Named Types
    • Classes
    • Structures
    • Enumerations
    • Protocols
  • Compound Types
    • Function Types
    • Tuple Types

Structures

• Examples:
  • Structures:
    • Bool
    • Int
    • Double
    • Float
    • String
    • Character
  • Generic Structures:
    • Range
    • ClosedRange
    • Array
    • Dictionary
    • Set

Enumerations

• Examples:
  • Enumerations:
    • Unicode
  • Generic Enumerations:
    • Optional

Protocols

• Examples:
  • Protocols:
    • Error
    • OptionSet

Function Types

• Examples:
  • () -> Void (is an alias of () -> ())
  • (Void) -> Void (is an alias of (()) -> (), different from above)
  • (Int) -> Int
  • (Int) -> (Int) -> Int (the same as (Int) -> ((Int) -> Int))

Tuple Types

• Examples:
  • (Int, Int)
  • (Int, String)
  • (Int, Int, Int)