Using the split function in Swift 2

split is a method in an extension of CollectionType which, as of Swift 2, String no longer conforms to. Fortunately there are other ways to split a String:

1. Use componentsSeparatedByString:

   "ab cd".componentsSeparatedByString(" ") // ["ab", "cd"]
   

   As pointed out by @dawg, this requires you import Foundation.

2. Instead of calling split on a String, you could use the characters of the String. The characters property returns a String.CharacterView, which conforms to CollectionType:

   "😀 🇬🇧".characters.split(" ").map(String.init) // ["😀", "🇬🇧"]
   

3. Make String conform to CollectionType:

   extension String : CollectionType {}
   
   "w,x,y,z".split(",") // ["w", "x", "y", "z"]
   

   Although, since Apple made a decision to remove String‘s conformance to CollectionType it seems more sensible to stick with options one or two.

In Swift 3, in options 1 and 2 respectively:

• componentsSeparatedByString(:) has been renamed to components(separatedBy:).
• split(:) has been renamed to split(separator:).