instance method `dup`

Ruby on Rails 5.2.8.1

Since v3.0.20

Available in: v3.0.20 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:

dup()

Returns a shallow copy of the hash.

hash = ActiveSupport::HashWithIndifferentAccess.new({ a: { b: 'b' } })
dup  = hash.dup
dup[:a][:c] = 'c'

hash[:a][:c] # => "c"
dup[:a][:c]  # => "c"

Source

# File activesupport/lib/active_support/hash_with_indifferent_access.rb, line 254
    def dup
      self.class.new(self).tap do |new_hash|
        set_defaults(new_hash)
      end
    end

Defined in activesupport/lib/active_support/hash_with_indifferent_access.rb line 254 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::HashWithIndifferentAccess

Signature