Strings are collections again

Paul Hudson      @twostraws

This is a small change, but one guaranteed to make a lot of people happy: strings are collections again. This means you can reverse them, loop over them character-by-character, map() and flatMap() them, and more. For example:

let quote = "It is a truth universally acknowledged that new Swift versions bring new features."
let reversed = quote.reversed()

for letter in quote {
    print(letter)
}

This change was introduced as part of a broad set of amendments called the String Manifesto.

Sponsor Hacking with Swift and reach the world's largest Swift community!

Other changes in Swift 4.0…

• Encoding and decoding data using Codable
• Multi-line string literals
• Improved keypaths for key-value coding
• Improved dictionary functionality
• One-sided ranges

Download all Swift 4.0 changes as a playground Link to Swift 4.0 changes

Browse changes in all Swift versions