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Swift Introduction to Swift in Ruby

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@josephku

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370,000

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Safe Modern Power

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No base class

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@objc

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Playground

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Visual REPL

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Use constant

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let var

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Unicode

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π

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String Interpolation

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

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

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Array & Dictionary

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Array & Hash

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1..10 1…10

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

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Functional Programming

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Structure & Class

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Extensions

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

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500.times { puts "Me again!" }

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Tuple

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

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?

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var serverResponseCode: Int? = 404 serverResponseCode = nil

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Optional Chaining

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

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RubyMotion

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C’mon, it’s Ruby!!

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?

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Thank you!