educoder/app/views/item_banks/index.json.jbuilder

json.items @items.each do |item|
  json.partial! "item_banks/item", locals: {item: item}
  json.update_time item.updated_at&.strftime("%Y-%m-%d %H:%M")
  json.author do
    json.login item.user&.login
    json.name item.user&.full_name
  end
end
json.items_count @items_count