CodeWithChris Swift 4 Syntax Cheat Sheet

Source: http://codewithchris.com/swift-cheat-sheet/ v1.0

var myVariable:DataTypelet myConstant:DataType

Variables/Constants

class myClass:Superclass {}

Classes

StringIntBoolDoubleFloatCharacter

Data Types

func myFunction(arg param:DataType) -> ReturnType {}

Functions

if condition {}else if condition {}else {}

If Statements

for variable in lower...upper {}

while condition {}

repeat {} while condition

Loops

switch value to consider {case value:case value:default:}

Switch