Topics

• Enums
• Protocols
• Optionals
• Closures
• Arrays
• Strings and Characters
• Conditionals
• Generics
• Advanced Operators
• Loops

Examples

• Basic enumerations
• Protocol Basics
• Associated type requirements
• Unwrapping an Optional
• Passing closures into functions
• Basics of Arrays
• Concatenate strings
• Optional binding and "where" clauses
• Nil Coalescing Operator
• Sorting an Array
• Constraining Generic Placeholder Types
• Transforming the elements of an Array with map(_:)
• Extracting values of a given type from an Array with flatMap(_:)
• Overloading + for Dictionaries
• For-in loop
• Optional Chaining
• Filtering an Array
• The Basics of Generics
• Filtering out nil from an Array transformation with flatMap(_:)
• Enumerations share many features with classes and structures
• Class-Only Protocols
• Flattening the result of an Array transformation with flatMap(_:)
• Lazily flattening a multidimensional Array with flatten()
• Combining an Array's elements with reduce(_:combine:)
• Finding the minimum or maximum element of an Array