What is equivalent to Swift's HashSet Java script?

Question

I have specific logic in Java that uses a HashSet<String> . Collection set contains only unique elements.

For instance:

 Set<String> mySets = new HashSet<String>(); mySets.add("a"); mySets.add("a"); mySets.add("b"); mySets.add("a"); 

I get: ["a","b"] .

What is the equivalent collection in Swift?

Thanks,

Answer 1

Swift (and Objective-C), equivalent to Java HashSet , NSSet .

Example:

 var s = NSMutableSet() s.addObject("a") s.addObject("a") s.addObject("b") s.addObject("a") println("s: \(s)") 

exit:

 s: {( a, b )}