Swift Introduction to Swift in Ruby

@josephku

370,000

Safe Modern Power

No base class

@objc

Playground

Visual REPL

Use constant

letvar

Unicode

π

String Interpolation

let name = "Afu"let age = 3let greetings = "Hi! My name is \(name). My human age is \(age * 7)"println(greetings)

puts "Hi! I am #{name}. My human age is #{age * 7}"

Array & Dictionary

Array & Hash

1..10 1…10

if true { println("only me!")}

Functional Programming

Structure & Class

Extensions

500.repeatitions { println("Me again!") }

500.times { puts "Me again!" }

Tuple

let someTuple: (Double, Double) = (3.14159, 2.71828)

?

var serverResponseCode: Int? = 404serverResponseCode = nil

Optional Chaining

num = paul.residence?.address?.buildingNumber?.toInt()

RubyMotion

C’mon, it’s Ruby!!

?

Thank you!