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



How to Replace a Substring in String in Swift ?

Answer

To replace a substring in Swift, you can use the replacingOccurrences method of the String class. [todo]



✐ Examples

1 Replace Substring in a String

In this example,

  1. We create a string named str with a string value.
  2. We use the replacingOccurrences method of the string object str to replace a specific substring with another substring.
  3. The replacingOccurrences method returns a new string with the specified replacements.
  4. Finally, we print the modified string to standard output.

Swift Program

import Foundation

let str = "Hello World"
let newStr = str.replacingOccurrences(of: "World", with: "Swift")
print("Modified string: \(newStr)")

Output

Modified string: Hello Swift

2 Replace Substring in Another String

In this example,

  1. We create another string named str1 with a string value.
  2. We use the replacingOccurrences method of the string object str1 to replace a specific substring with another substring.
  3. The replacingOccurrences method returns a new string with the specified replacements.
  4. Finally, we print the modified string to standard output.

Swift Program

import Foundation

let str1 = "Swift is amazing"
let newStr1 = str1.replacingOccurrences(of: "amazing", with: "powerful")
print("Modified string: \(newStr1)")

Output

Modified string: Swift is powerful

Summary

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




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