instance method `deep_dup`

Ruby on Rails 3.2.22.5

Since v3.1.12

Available in: v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

deep_dup()

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"

Source

# File activesupport/lib/active_support/core_ext/hash/deep_dup.rb, line 10
  def deep_dup
    duplicate = self.dup
    duplicate.each_pair do |k,v|
      tv = duplicate[k]
      duplicate[k] = tv.is_a?(Hash) && v.is_a?(Hash) ? tv.deep_dup : v
    end
    duplicate
  end

Defined in activesupport/lib/active_support/core_ext/hash/deep_dup.rb line 10 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

Signature