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k-hamada/gist:7c1234c1828a52c2f8cb01da71578d55

Created March 21, 2017 13:23
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Hashie shallow copy
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gistfile1.txt
[1] pry(main)> class MyHash < Hash
[1] pry(main)* include Hashie::Extensions::MergeInitializer
[1] pry(main)* include Hashie::Extensions::IndifferentAccess
[1] pry(main)* end
=> MyHash
[2] pry(main)> h={a: {b: 1}}
=> {:a=>{:b=>1}}
[3] pry(main)> h
=> {:a=>{:b=>1}}
[4] pry(main)> MyHash.new(h)
=> {"a"=>{"b"=>1}}
[5] pry(main)> h
=> {:a=>{"b"=>1}}
[6] pry(main)> h={a: {b: 1}}
=> {:a=>{:b=>1}}
[7] pry(main)> MyHash.new(h.deep_dup)
=> {"a"=>{"b"=>1}}
[8] pry(main)> h
=> {:a=>{:b=>1}}
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👀 ttps://github.com/hashie/hashie/pull/195/

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