How to Check if a String contains given Substring in Swift - Step by Step Examples

How to Check if a String contains given Substring in Swift ?

To check if a string contains a given substring in Swift, you can use the contains method of the String class.

In this example,

We create a string named str with a string value.
We use the contains method of the string object str to check if it contains the substring "World".
The contains method returns a Boolean value indicating whether the substring is found.
Finally, we print the result to standard output.

import Foundation

let str = "Hello World"
let containsSubstring = str.contains("World")
print("String contains 'World': \(containsSubstring)")

String contains 'World': true

In this example,

We create a string named str1 with a string value.
We use the contains method of the string object str1 to check if it contains the substring "Swift".
The contains method returns a Boolean value indicating whether the substring is found.
Finally, we print the result to standard output.

import Foundation

let str1 = "Hello Swift"
let containsSubstring = str1.contains("Swift")
print("String contains 'Swift': \(containsSubstring)")

String contains 'Swift': true

In this example,

We create a string named str2 with a string value.
We use the contains method of the string object str2 to check if it contains the substring "Python".
The contains method returns a Boolean value indicating whether the substring is found.
Finally, we print the result to standard output.

import Foundation

let str2 = "Hello Swift"
let containsSubstring = str2.contains("Python")
print("String contains 'Python': \(containsSubstring)")

String contains 'Python': false

In this tutorial, we learned How to Check if a String contains given Substring in Swift language with well detailed examples.