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Scala List filter() method with example
  • Last Updated : 26 Jul, 2019

The filter() method is utilized to select all elements of the list which satisfies a stated predicate.

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

Return Type: It returns a new list consisting all the elements of the list which satisfies the given predicate.

Example #1:




// Scala program of filter()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a list
        val m1 = List(5, 12, 3, 13)
          
        // Applying filter method
        val result = m1.filter(_ < 10)
          
        // Displays output
        println(result)
      
    }
}
Output:



List(5, 3)

Example #2:




// Scala program of filter()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a list
        val m1 = List(5, 12, 3, 13)
          
        // Applying filter method
        val result = m1.filter(_ < 3)
          
        // Displays output
        println(result)
      
    }
}
Output:
List()

Here, an empty list is returned as none of the elements satisfy the stated predicate.

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