Scala Set dropWhile() method with example

The dropWhile() method is utilized to drop the longest prefix of elements from the set that satisfies the stated condition.

Method Definition: def dropWhile(p: (A) => Boolean): Set[A]

Return Type: It returns a set containing all the elements after dropping the longest prefix of elements from the set that satisfies the stated condition.

Example #1:

// Scala program of dropWhile()
// method

// Creating object
object GfG
{

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

        // Creating a list
        var s1 = Set(1, 3, 5, 4, 2)

        // Print the set
        println(s1)

        // Applying dropWhile method
        var res = s1.dropWhile(x => {x % 2 != 0})

        // Displays output
        println(res)

    }
}

Output:

Set(5, 1, 2, 3, 4)
Set(2, 3, 4)

Example #2:

// Scala program of dropWhile()
// method

// Creating object
object GfG
{

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

        // Creating a list
        var s1 = Set(1, 3, 5, 4, 2)

        // Print the set
        println(s1)

        // Applying dropWhile method
        var res = s1.dropWhile(x => true)

        // Displays output
        println(res)

    }
}

Output:

Set(5, 1, 2, 3, 4)
Set()