Split a String into an array in Swift?

Question

Say I have a string here:

var fullName: String = "First Last" 

I want to split the string base on white space and assign the values to their respective variables

var fullNameArr = // something like: fullName.explode(" ")   var firstName: String = fullNameArr[0] var lastName: String? = fullnameArr[1] 

Also, sometimes users might not have a last name.

Answer 1

Just call componentsSeparatedByString method on your fullName

import Foundation  var fullName: String = "First Last" let fullNameArr = fullName.componentsSeparatedByString(" ")  var firstName: String = fullNameArr[0] var lastName: String = fullNameArr[1] 

Update for Swift 3+

import Foundation  let fullName    = "First Last" let fullNameArr = fullName.components(separatedBy: " ")  let name    = fullNameArr[0] let surname = fullNameArr[1] 

Answer 2

The Swift way is to use the global split function, like so:

var fullName = "First Last" var fullNameArr = split(fullName) {$0 == " "} var firstName: String = fullNameArr[0] var lastName: String? = fullNameArr.count > 1 ? fullNameArr[1] : nil 

with Swift 2

In Swift 2 the use of split becomes a bit more complicated due to the introduction of the internal CharacterView type. This means that String no longer adopts the SequenceType or CollectionType protocols and you must instead use the .characters property to access a CharacterView type representation of a String instance. (Note: CharacterView does adopt SequenceType and CollectionType protocols).

let fullName = "First Last" let fullNameArr = fullName.characters.split{$0 == " "}.map(String.init) // or simply: // let fullNameArr = fullName.characters.split{" "}.map(String.init)  fullNameArr[0] // First fullNameArr[1] // Last