Question

How to merge array into a set in Swift

Answer 1

var st: Set = ["set1", "set2", "set2"]

let arr = ["arr1", "arr1", "arr1", "arr2", "arr3", "arr4", "arr4"]

st.formUnion(arr)

print(st)
print(arr)

 
 
 
/*
run:
 
["arr2", "arr1", "arr4", "set2", "set1", "arr3"]
["arr1", "arr1", "arr1", "arr2", "arr3", "arr4", "arr4"]

*/

 

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Answer 2

var st: Set = [1, 2, 3]

let arr = [1, 2, 2, 2, 3, 5, 7, 8, 8]

st.formUnion(arr)

print(st)
print(arr)

 
 
 
/*
run:
 
[5, 8, 3, 2, 1, 7]
[1, 2, 2, 2, 3, 5, 7, 8, 8]

*/

 

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