Sets

作者: TimZz | 来源:发表于2018-05-19 10:11 被阅读0次

CREATING SETS

let setOne: Set<Int>

let someArray = [1, 2, 3, 1]

var someSet: Set<Int> = [1, 2, 3, 1]

print(someSet)
// > [2, 3, 1]

ACCESSING ELEMENTS

print(someSet.contains(1))
// > true
print(someSet.contains(4))
// > false

ADDING & REMOVING ELEMENTS

someSet.insert(5)

let removedElement = someSet.remove(1)
print(removedElement!)
// > 1

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