instance method `instance_variable_names`

Ruby on Rails 4.1.16

Since v2.2.3

Available in: v2.2.3 v2.3.18 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:

instance_variable_names()

Returns an array of instance variable names as strings including “@”.

class C
  def initialize(x, y)
    @x, @y = x, y
  end
end

C.new(0, 1).instance_variable_names # => ["@y", "@x"]

Source

# File activesupport/lib/active_support/core_ext/object/instance_variables.rb, line 25
  def instance_variable_names
    instance_variables.map { |var| var.to_s }
  end

Defined in activesupport/lib/active_support/core_ext/object/instance_variables.rb line 25 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Object

Signature