How to Sort using NSMutableArray?

Question

I am trying to sort the NSMutableArray with this piece of code

let sortContacts = contactData! as NSArray as? [String]
        print("\(sortContacts.sort())") 

I am trying to convert the NSMutableArray to Array of String but when it comes to print("\\(sortContacts.sort())") its giving me nil

Anyone who can suggest me sorting through NSMutableArray?

Answer 1

The class NSMutableArray has several sort methods. You should read the documentation. One of the sort methods is this one .

By the way: a ! in Swift code is a code smell.

Answer 2

This works, just make sure your NSMutableArray contains only string, else use if let :

let contactData = NSMutableArray(array: ["c","b","a"])
let sortContacts = contactData as NSArray as! [String]
print(sortContacts.sort())