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@ -31,7 +31,7 @@ optionalString = nil
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// Array
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var shoppingList = ["catfish", "water", "lemons"]
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shoppingList[1] = "bottle of water"
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let emptyArray = String[]()
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let emptyArray = [String]()
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// Dictionary
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var occupations = [
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@ -65,7 +65,7 @@ for (key, value) in dict {
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for i in -1...1 { // [-1, 0, 1]
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println(i)
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}
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// use .. to exclude the last number
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// use ..< to exclude the last number
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// while loop
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var i = 1
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@ -127,6 +127,7 @@ increment(7)
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//
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// Closures
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//
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var numbers = [1, 2, 6]
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// Functions are special case closures ({})
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@ -140,8 +141,10 @@ numbers.map({
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})
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// When the type is known, like above, we can do this
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var numbers = [1, 2, 6]
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numbers = numbers.map({ number in 3 * number })
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//Or even this
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//numbers = numbers.map({ $0 * 3 })
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print(numbers) // [3, 6, 18]
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