How to check if there is common values in two arrays - IN SWIFT?

Question

Array1 = [1,2,3]

Array 2 = [2,4,5,7]

I have above two arrays , I need to find whether any value in Array1 is in another array (Array 2) .

If Array1(value) matches Array2(value){
   // BINGO , you have  integer value 2 in second array , i.e 2 is common in two arrays
}

I know contains() which checks if array contains particular value or not. But it would make more loops.

var elements = [1,2,3,4,5]
if elements.contains(5) {
   print("yes")
}

P.S:: I was searching if there is any swift function for this. I want to limit my loops for searching common values is two arrays.

Any help would be appreciated.

possible duplicate of Set operations (union, intersection) on Swift array? — Larme
– Larme, Commented Sep 4, 2015 at 9:11

Pablo A. · Accepted Answer · 2015-09-04 09:23:09Z

1

Don't use NSArray, use NSSet which doesn't contain duplicates, then if they're the same that means they have common values.

answered Sep 4, 2015 at 9:23

Pablo A.

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