Flowdock
instance_variable_set(ivarname, value) public

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November 18, 2009 - (>= v1_8_6_287)
4 thanks

Example

code:

class Klass
  def set(string)
    var_name = "@#{string}"  # the '@' is required
    self.instance_variable_set(var_name, 'bar')
  end
  def puts_foo
    puts @foo
  end
end
k = Klass.new
k.puts_foo  # nil
k.set('foo')
k.puts_foo  # 'bar'