[英]Ruby: merge two hash as one and with value connected
哈希:
h1 = { "s1" => "2009-7-27", "s2" => "2010-3-6", "s3" => "2009-7-27" }
h2 = { "s1" => "12:29:15", "s2" => "10:00:17", "s3" => "12:25:52" }
我想合并这两个哈希像这样:
h = { "s1" => "2009-7-27 12:29:15",
"s2" => "2010-3-6 10:00:17",
"s3" => "2009-7-27 2:25:52" }
做这个的最好方式是什么? 谢谢!
h = h1.merge(h2){|key, first, second| first + " " + second }
如果您的密钥相同,它将起作用。 在你的代码中,它们不是(“s1”vs“s1 =”)。 它们应该是相同的键吗?
你的意思是:
Hash[h1.map{|k,v| [k, "#{v} #{h2[k]}"]}]
=> {"s3"=>"2009-7-27 12:25:52", "s1"=>"2009-7-27 12:29:15", "s2"=>"2010-3-6 10:00:17"}
注哈希是无序的,如果你想要一个有序的散列你可能需要看看这个
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