Swift - Sort array of objects with multiple criteria

Question

I have an array of Contact objects:

var contacts:[Contact] = [Contact]()

Contact class:

Class Contact:NSOBjec         


        

Answer 1

that worked for my array[String] in Swift 3 and it seems in Swift 4 is ok

array = array.sorted{$0.compare($1, options: .numeric) == .orderedAscending}