What is the list.isEmpty method in Scala?

The list.isEmpty function in Scala checks if a list is empty. The list.isEmpty function returns true if the list is empty; otherwise, it returns false.

The illustration below shows a visual representation of the list.isEmpty function.

Visual representation of the list.isEmpty function

Syntax

list_name.isEmpty

list_name is the name of the list.

Parameters

The list.isEmpty function does not require any parameters.

Return value

If the list is empty, the list.isEmpty function returns true; otherwise, it returns false.

Code

The following code shows how to use the list.isEmpty function in Scala.

import scala.collection.mutable.Map
object Main extends App {
//filled list
var list_1 = List(1,3,4,2,0)
//list_1 elements
println("The list_1 elements: " + list_1);
println("The list_1 is empty: " + list_1.isEmpty);
//empty list
var list_2 = List()
//list_2 elements
println("The list_2 elements: " + list_2);
println("The list_2 is empty: " + list_2.isEmpty);
}

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