Split array to chunks

gistfile1.rb

def chunks a, size
	chunk_count = a.size/size
	chunk_count -= 1 if (a.size % size) == 0
	(0..chunk_count).map do |k|
		a.slice(k*size, size)
	end
end

chunks((1...100).to_a, 20).each { |x| puts x.inspect }