How to Check if String is Empty in Kotlin - Step by Step Examples

How to Check if String is Empty in Kotlin ?

To check if a string is empty in Kotlin, you can use the isEmpty() method of the String class.

In this example,

We create a string named str1 with a value of an empty string "".
We use the isEmpty() method on str1 to check if it is empty.
The isEmpty() method returns true if the string is empty, otherwise false.
Finally, we print the result to the console.

fun main() {
    val str1 = "";
    val isEmpty = str1.isEmpty()
    println("Is string empty: $isEmpty")
}

Is string empty: true

In this example,

We create a string named str2 with a value of "Hello World".
We use the isEmpty() method on str2 to check if it is empty.
The isEmpty() method returns true if the string is empty, otherwise false.
Finally, we print the result to the console.

fun main() {
    val str2 = "Hello World";
    val isEmpty = str2.isEmpty()
    println("Is string empty: $isEmpty")
}

Is string empty: false

In this tutorial, we learned How to Check if String is Empty in Kotlin language with well detailed examples.