Key words for Swift

Using keywords in declarations

Let: Declares a constant

var: declaring a variable

Class: Declaring a Category

Static: Statically

Deinit: Inverse initialization method? destructor method

Init: How to construct it? Initialize method

Enum: enum

Extension: Extending---Adding methods to Objects

Func: Declaring a function

Import: Importing header files

Internal: The Internal

Private: Private

Public: Publicly available

Operator: custom operator

Protocol: Protocol

struct: struct

Subscript: Subscript

Typealias: Renaming a method Typealias Feet = Int

Using keywords in statements

Break: Interrupt

Case: Condition

Continue: Skip

Default: Defaults

Do: What to do for example Do...while

Repeat: Ditto Repeat...while

if: Conditional judgment

ELSE: Conditional judgment

else if: conditional judgment

SWITCH: Conditional selection

Fallthrough: A statement jump is used to jump in a switch to execute a piece of code that has Fallthrough and jumps to the default

For: Loop

For in: Loop

While: Looping

Where: After case judgment executioncase let (x, y) where x == y:

Using keywords in expressions and types

As	DynamicType	False	Is
Nil	Self	Self	Super
True	_column_	_file_	_function_
_line_

Keywords used in specific situations

Associativity	Convenience	Dynamic	Didset
Final	Get	Infix	InOut
Lazy	Left	Mutating	None
Nonmutating	Optional	Override	Postfix
Precedence	Prefix	Protocol	Required
Right	Set	Type	unowned
Weak	Willset

Key words for Swift