Scala List +() operator with example

The +() operator in Scala is utilized to append an element to the list.

Method Definition: def +(elem: A): List[A]

Return Type: It returns a list of the stated elements after appending it to an another element.

Example #1:

// Scala program of +()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a list
        val m1 = List(1, 2, 3)

        // Applying + operator
        val res = m1.+("10")

        // Displays output
        println(res)

    }
}

Output:

List(1, 2, 3)10

Example #2:

// Scala program of +()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a list
        val m1 = List()

        // Applying + operator
        val res = m1.+("10")

        // Displays output
        println(res)

    }
}

Output:

List()10