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Martin91/hash_addition.rb

Created June 2, 2017 02:42
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ruby hashes addition
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hash_addition.rb
hash1 = {a: 100, b: [1, 2], c: "hello"}
hash2 = {a: 300, b: [3, 4, 5], c: " world", d: "fh"}
hash1.merge(hash2) { |key, val_f, val_r| val_f + val_r }
# => {:a=>400, :b=>[1, 2, 3, 4, 5], :c=>"hello world", :d=>"fh"}
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