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ハッシュをソートしてハッシュで返す

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ハッシュをソートしてハッシュで返す。

hash_sort.rb
Hash[{:aaa => 1, :bbb => 2, :ccc => 3, :abc =>4}.sort]
=> {:aaa=>1, :abc=>4, :bbb=>2, :ccc=>3}

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