How to convert a string to uppercase letters
Swift version: 5.6
If you want to convert a string to uppercase – that is, WHERE EVERY LETTER IS A CAPITAL LETTER – you should use the uppercased() method of your string, like this:
let str = "Sunday, Monday, Happy Days"
print(str.uppercased())That code will print "SUNDAY, MONDAY, HAPPY DAYS" into the Xcode console.
SAVE 50% To celebrate Black Friday, all our books and bundles are half price, so you can take your Swift knowledge further without spending big! Get the Swift Power Pack to build your iOS career faster, get the Swift Platform Pack to builds apps for macOS, watchOS, and beyond, or get the Swift Plus Pack to learn advanced design patterns, testing skills, and more.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 2.0
Similar solutions…
- How to convert a string to lowercase letters
- How to make TextField uppercase or lowercase using textCase()
- How to loop through letters in a string
- How to add spacing between letters in text
- How to fix “Cannot convert value of type 'String' to expected argument type 'Binding
’”
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
