Question

How to split an array into evenly sized chunks in Scala

Answer 1

val array = Array(1, 2, 3, 4, 5, 6, 7, 8, 9)
val chunkSize = 3

val chunks = array.grouped(chunkSize).toArray

chunks.foreach(chunk => println(chunk.mkString(", ")))
 
  
  
/*
run:
    
1, 2, 3
4, 5, 6
7, 8, 9
  
*/

 

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Answer 2

val array = Array(1, 2, 3, 4, 5, 6, 7, 8, 9)
val chunkSize = 3

val chunks = array.sliding(chunkSize, chunkSize).toArray

chunks.foreach(chunk => println(chunk.mkString(", ")))
 
  
  
/*
run:
    
1, 2, 3
4, 5, 6
7, 8, 9
  
*/

 

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