Note that Ruby allows non-braced interpolation with instance variables. So: irb(main):006:0> @foo = 'bar' => "bar" irb(main):007:0> "This is the value o

Note that Ruby allows non-braced interpolation with instance variables. So: irb(main):006:0> @foo = 'bar' => "bar" irb(main):007:0> "This is the value of foo: #@foo" => "This is the value of foo: bar"