Swift

1.Swift Sneak Peek

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2.Optional

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3.Control-Flow, Collection, String, Function

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4.Clousure

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5.Class, Struct, Enumeration

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6.Property

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7.Subcript, Inheritance

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8.Initializer, Deinitializer

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9.Two-Phase Initialization

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10.Extension, Protocol, Generic

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11.Error Handling

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12.Automatic Reference Counting

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13.Access Control

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14.autoreleasepool

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15.reduce(::) vs reduce(into::)

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16.Safe Array Lookup

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17.Set Insert & Update

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18.RunLoop

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19.Timer

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20.KVC/KVO in Objective-C

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21.KVC/KVO in Swift

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22.KeyPath

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23.URLSession

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24.URL / URLRequest

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25.URLSessionTask

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26.Notification Center

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27.static vs. class

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28.metatype

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29.Type Alias

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30.associatedtype

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31.Where Clause

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