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  1. hashes = [
  2.   {:foo=>2, :date=>'Sat, 01 Sep 2014'},
  3.   {:foo2=>2, :date=>'Sat, 02 Sep 2014'},
  4.   {:foo3=>3, :date=>'Sat, 01 Sep 2014'},
  5.   {:foo4=>4, :date=>'Sat, 03 Sep 2014'},
  6.   {:foo5=>5, :date=>'Sat, 02 Sep 2014'}
  7. ]
  8.  
  9. puts hashes.group_by{|h| h[:date] }.map{|_, hs| hs.reduce(:merge)}
Success #stdin #stdout 0.01s 7412KB
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{:foo=>2, :date=>"Sat, 01 Sep 2014", :foo3=>3}
{:foo2=>2, :date=>"Sat, 02 Sep 2014", :foo5=>5}
{:foo4=>4, :date=>"Sat, 03 Sep 2014"}
https://ideone.com/FQykjw
language:
Ruby (ruby 2.5.5)
created:
11 years ago
visibility:
public

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