Scala Set dropWhile() method with example

Last Updated : 15 Oct, 2019
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 
// 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 
// 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()
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