Scala List dropWhile() method with example

Last Updated : 26 Jul, 2019

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

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

Return Type: It returns all the elements of the list except the dropped ones.

Example #1:

// Scala program of dropWhile() 
// method 
  
// Creating object 
object GfG 
{  
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating a list 
        val m1 = List(1, 3, 5, 4, 2) 
          
        // Applying dropWhile method 
        val res = m1.dropWhile(x=>{x % 2 != 0}) 
          
        // Displays output 
        println(res) 
      
    } 
} 

Output:

List(4, 2)

Example #2:

// Scala program of dropWhile() 
// method 
  
// Creating object 
object GfG 
{  
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating a list 
        val m1 = List(3, 6, 5, 4, 2) 
          
        // Applying dropWhile method 
        val res = m1.dropWhile(x=>{x % 3 == 0}) 
          
        // Displays output 
        println(res) 
      
    } 
} 