Terminology

• CodeAesthetic .

  • Aesthetics and programming theories.

Casing

• camelCase :

  • getCookie

• snake_case :

  • get_cookie

• PascalCase :

  • GetCookie

Anonymous Functions vs Lambda Functions vs Closures

• Lambda :

  • They are Anonymous Functions, even smaller, in one line.

• Closures :

  • An Anonymous Function, but aware of its surroundings.

Operators

• Unary :

  • Operators operate on a single target (such as -a ). Unary prefix  operators appear immediately before their target (such as !b ), and unary postfix  operators appear immediately after their target (such as c! ).

• Binary :

  • Operators operate on two targets (such as 2 + 3 ) and are infix  because they appear between their two targets.

• Ternary :

  • Operators operate on three targets. Like C, Swift has only one ternary operator, the ternary conditional operator ( a ? b : c ).

• The values that operators affect are operands . In the expression 1 + 2 , the +  symbol is an infix operator and its two operands are the values 1  and 2 .

Compilation / Interpreter

• Compilation and Interpreter {18:28 -> 27:41} .

Reflection

• It is the ability of a program to inspect and manipulate its own structure at runtime.

• This includes:

  • Listing types, functions, fields, attributes.

  • Getting function argument types.

  • Dynamically creating instances of types.

  • Invoking functions by their names.

• Function Introspection :

  • A subtype of reflection. Refers specifically to the ability to:

    • Get the function name.

    • View its parameters and types.

    • Know its return type.

    • Inspect attributes.

    • View its source code.