How to Split (Chunk) a Ruby Array into Parts of X Elements? [Duplicate]

Name: How to Split (Chunk) a Ruby Array into Parts of X Elements? [Duplicate]
Uploaded: 2026-09-27T13:57:07+00:00
Duration: 11 min 43 s
Description: I Have an Array Foo = %W(1 2 3 4 5 6 7 8 9 10) How Can I Split or "Chunk" This into Smaller Arrays? Class Array Def Chunk(Size) # Return Array of Arrays End...

Question

I have an array

foo = %w(1 2 3 4 5 6 7 8 9 10)

How can I split or "chunk" this into smaller arrays?

class Array
  def chunk(size)
    # return array of arrays
  end
end

foo.chunk(3)
# => [[1,2,3],[4,5,6],[7,8,9],[10]]

Accepted Answer

Take a look at Enumerable#each_slice:

foo.each_slice(3).to_a
#=> [["1", "2", "3"], ["4", "5", "6"], ["7", "8", "9"], ["10"]]

Answer 2

If you're using rails you can also use in_groups_of:

foo.in_groups_of(3)

How to Split (Chunk) a Ruby Array into Parts of X Elements? [Duplicate]

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2 Answers

David Miller