How to Remove Special Characters from a String in Swift - Step by Step Examples



How to Remove Special Characters from a String in Swift ?

Answer

To remove special characters from a string in Swift, you can use the `replacingOccurrences` method with a regular expression pattern.



✐ Examples

1 Remove Special Characters from "Hello! World!"

In this example,

  1. We create a string variable str1 with a value of "Hello! World!".
  2. We use the replacingOccurrences method with a regular expression pattern "[^a-zA-Z0-9 ]" to replace all non-alphanumeric characters and spaces with an empty string.
  3. Finally, we print the modified string str1.

Swift Program

import Foundation

var str1 = "Hello! World!"
str1 = str1.replacingOccurrences(of: "[^a-zA-Z0-9 ]", with: "", options: .regularExpression)
print("Modified string:", str1)

Output

Modified string: Hello World

2 Remove Special Characters from "apple@banana"

In this example,

  1. We create a string variable str2 with a value of "apple@banana".
  2. We use the replacingOccurrences method with a regular expression pattern "[^a-zA-Z0-9 ]" to replace all non-alphanumeric characters and spaces with an empty string.
  3. Finally, we print the modified string str2.

Swift Program

import Foundation

var str2 = "apple@banana"
str2 = str2.replacingOccurrences(of: "[^a-zA-Z0-9 ]", with: "", options: .regularExpression)
print("Modified string:", str2)

Output

Modified string: applebanana

Summary

In this tutorial, we learned How to Remove Special Characters from a String in Swift language with well detailed examples.




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