达到如下效果
pool = []
ModelName.all.each_with_index do |obj , index|
pool.push [] if index % num == 0
pool.last.push obj
end
pool
(1..10).each_slice(3).to_a
# => [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10]]
达到如下效果
pool = []
ModelName.all.each_with_index do |obj , index|
pool.push [] if index % num == 0
pool.last.push obj
end
pool
(1..10).each_slice(3).to_a
# => [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10]]