合并一些复杂的红宝石 [英] merge some complex hashes in ruby

问题描述

  h1 = {201201=> {：received => 2}，201202=> {：received => 4}} 
 h2 = {201201=> {：closed => 1}，201202=> {：closed => 1}} 
  

特别是，我的预期结果是：

  h1 = {201201=> {：received => 2，：closed => 1}，201202=> {：received => 4，：closed => 1}} 
  

我曾尝试过各种方式：

  h = h1.merge（h2）{| key，first，second | {第一，第二}} 
  

不幸的是，对我而言，这两者似乎都没有问题。
任何建议都将得到真正的赞赏。

解决方案

这应该适合您：

  h = h1.merge（h2）{| key，first，second | first.merge（second）} 
  

I'd like to merge the following hashes together.

 h1 = {"201201" => {:received => 2},   "201202" => {:received => 4 }}
 h2 = {"201201" => {:closed => 1},  "201202" => {:closed => 1 }}

particularly, my expected result is:

h1 = {"201201" => {:received => 2, :closed => 1},  "201202" => {:received => 4, :closed => 1 }}

I have tried every way as:

h = h1.merge(h2){|key, first, second| {first , second} }

unfortunately, neither seemed to work out fine for me. any advice would be really appreciated.

解决方案

This should work for you:

h = h1.merge(h2){|key, first, second| first.merge(second)}

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