method

deep_dup

rails latest stable - Class: Array

deep_dup()

public

Returns a deep copy of array.

array = [1, [2, 3]]
dup   = array.deep_dup
dup[1][2] = 4

array[1][2] # => nil
dup[1][2]   # => 4

# File activesupport/lib/active_support/core_ext/object/deep_dup.rb, line 29
  def deep_dup
    map(&:deep_dup)
  end