循环哈希数组并执行标题化和返回数组

Question

我有一个哈希数组，我想迭代并标题化这样的元素：

  @customer_activities.each do |activity|
    activity['name'].titleize
  end

如何确保activity['name'].titleize的结果最终影响@customer_activities中的条目？

Answer 1

@customer_activities.each do |activity|
    activity['name'] = activity['name'].titleize
end