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.
Available from iOS 2.0
Did this solution work for you? Please pass it on!
Other people are reading…
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
Go from iOS to macOS the easy way!
If you like Hacking with Swift, you'll love Hacking with macOS – learn to build macOS apps today, using 18 real-world projects!