📜  带有示例的 Scala Map dropRight() 方法

📅  最后修改于: 2022-05-13 01:55:14.450000             🧑  作者: Mango

带有示例的 Scala Map dropRight() 方法

dropRight()方法用于删除最后的“n”个元素。

示例 #1:

// Scala program of dropRight()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "cs" -> 5)
          
        // Applying dropRight method
        val result = m1.dropRight(1)
          
        // Displays output
        println(result)
      
    }
}
输出:
Map(geeks -> 5, for -> 3)

示例 #2:

// Scala program of dropRight()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3)
          
        // Applying dropRight method
        val result = m1.dropRight(2)
          
        // Displays output
        println(result)
      
    }
}
输出:
Map()

因此,这里返回一个空地图,因为地图的所有元素都被删除。