Question

How to remove a subvector from a vector in Scala

Answer 1

val vec = Vector(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val startIndex = 3 // inclusive
val endIndex = 6   // exclusive

// Remove subvector from startIndex to endIndex
val updatedVector = vec.take(startIndex) ++ vec.drop(endIndex)

println(updatedVector) 



 
 
/*
run:
  
Vector(1, 2, 3, 7, 8, 9, 10)
  
*/

 

 

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Answer 2

object SubvectorRemoval {
  def removeSubvector(vec: Vector[Int], startIndex: Int, endIndex: Int): Vector[Int] = {
    vec.take(startIndex) ++ vec.drop(endIndex)
  }

  def main(args: Array[String]): Unit = {
    val vec = Vector(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
    val startIndex = 3 // inclusive
    val endIndex = 6   // exclusive

    val updatedVector = removeSubvector(vec, startIndex, endIndex)

    println(updatedVector)
  }
}

 
 
/*
run:
  
Vector(1, 2, 3, 7, 8, 9, 10)
  
*/

 

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