Using Extension Functions for Enhanced Functionality

Extension functions allow you to add new functionality to existing classes without modifying their code. This is particularly useful for adding utility methods to standard library classes or third-party libraries, making your code cleaner and more expressive. By using extension functions, you can enhance readability and maintainability while keeping your code organized.

fun String.isEmailValid(): Boolean {
    return android.util.Patterns.EMAIL_ADDRESS.matcher(this).matches()
}

// Usage
val email = "example@example.com"
if (email.isEmailValid()) {
    println("The email is valid.")
} else {
    println("The email is invalid.")
}