How to convert an NSRange to a Swift string index
Swift version: 5.6
Swift strings have changed in every release since the language was first announced, but even after so much change its older counterpart, NSRange, still appears in many UIKit APIs.
Fortunately, Swift 4 introduced a simple way to convert any NSRange into a regular Swift Range. For example, say you had the following string and range:
let input = "Hello, world"
let range = NSMakeRange(0, 10)To make that into a Swift Range instance you just need this single line of code:
let swiftRange = Range(range, in: input)
SPONSORED Fernando's book will guide you in fixing bugs in three real, open-source, downloadable apps from the App Store. Learn applied programming fundamentals by refactoring real code from published apps. Hacking with Swift readers get a $10 discount!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 7.0
Similar solutions…
- How to handle unknown properties and methods using @dynamicMemberLookup
- How to use Core Spotlight to index content in your app
- How to search your app’s Spotlight index
- Optional vs implicitly unwrapped optional: what’s the difference?
- How to find the index of the first matching array element
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
