Class: Hash
Direct Known Subclasses
Instance Method Summary collapse
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#deep_dup ⇒ Object
Returns a deep copy of hash.
Instance Method Details
#deep_dup ⇒ Object
Returns a deep copy of hash.
hash = { a: { b: 'b' } }
dup = hash.deep_dup
dup[:a][:c] = 'c'
hash[:a][:c] # => nil
dup[:a][:c] # => "c"
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# File 'lib/core_ext/deep_dup.rb', line 41 def deep_dup hash = dup each_pair do |key, value| if ::String === key || ::Symbol === key hash[key] = value.deep_dup else hash.delete(key) hash[key.deep_dup] = value.deep_dup end end hash end |