Swift – Convert a String to Lowercase
To convert a String to Lowercase in Swift, use String.lowercased()
function. Call lowercased() function on the String. The function returns a new string with the contents of the original string transformed to lowercase alphabets.
The syntax to convert a String str
to Lowercase is
str.lowercased()
lowercased()
function returns a new String.
Example
In this example, we will take a string in variable str
and convert this string to lowercase using String.lowercased() function.
main.swift
import Foundation var str = "Hello World" var result = str.lowercased() print("Original String : \(str)") print("Lowercase String : \(result)")
Output
Original String : Hello World Lowercase String : hello world
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Conclusion
In this Swift Tutorial, we learned how to convert a string to lowercase using String.lowercased() function.