How to Replace All Occurrences of a Substring in a String in Swift - Step by Step Examples

How to Replace All Occurrences of a Substring in a String in Swift ?

To replace all occurrences of a substring in a string in Swift, you can use the replacingOccurrences method.

In this example,

We create a string named str.
We call the replacingOccurrences method on str with the substring to be replaced and the replacement string as arguments.
The replacingOccurrences method returns a new string with all occurrences of the substring replaced.
Finally, we print the modified string.

import Foundation

let str = "Hello World Hello"
let newStr = str.replacingOccurrences(of: "Hello", with: "Hi")
print(newStr)

Hi World Hi

In this example,

We create a string named str.
We call the replacingOccurrences method on str with the character to be replaced and the replacement character as arguments.
The replacingOccurrences method returns a new string with all occurrences of the character replaced.
Finally, we print the modified string.

import Foundation

let str = "Hello World Hello"
let newStr = str.replacingOccurrences(of: "o", with: "X")
print(newStr)

HellX WXrld HellX

In this tutorial, we learned How to Replace All Occurrences of a Substring in a String in Swift language with well detailed examples.