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  1. a = {a: 1, b: 2, c: 3}
  2. b = {a: 2, c: 4, b: 3}
  3. merged = a.merge!(b) { |k, o, n| o + n }
  4. p merged
Success #stdin #stdout 0s 28216KB
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{:a=>3, :b=>5, :c=>7}
https://ideone.com/yKrqLc
language:
Ruby (ruby 2.5.5)
created:
7 years ago
visibility:
public

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