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  1. #!/usr/bin/ruby -w
  2. # answer: http://o...content-available-to-author-only...e.jp/qa/q7067894.html
  3.  
  4. require 'pp'
  5.  
  6. h1 = {
  7.   "user1" => {"a" => 10, "b" => 20, "c" => 30},
  8.   "user2" => {"d" => 5, "e" => 8},
  9.   "user3" => {"f" => 10, "g" => 5, "h" => 10}
  10. }
  11.  
  12. pp h1.sort_by{|key, value|value.values.inject :-}
Success #stdin #stdout 0.01s 5024KB
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Standard input is empty
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[["user1", {"a"=>10, "b"=>20, "c"=>30}],
 ["user3", {"f"=>10, "g"=>5, "h"=>10}],
 ["user2", {"d"=>5, "e"=>8}]]
https://ideone.com/MjaPO
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
secret

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