Put class into interpolation block



%{Here is #{class InstantClass
   def bar
      "some text"
    end
  end
  InstantClass.new.bar
}.}

1.	Interpolation
2.	Interpolating Variables in Double-Quoted Strings
3.	Number value Interpolation
4.	The #{100 * 5} interpolates the result of 100 * 5 (500) into the string at that position
5.	You can interpolate strings too
6.	Constant Interpolation
7.	Call integer.to_s and Interpolation
8.	Use string method in interpolation
9.	Using expression substitution
10.	Add extra # sign to interpolation
11.	Compare string after interpolation
12.	Do a calculation in interpolation block
13.	Escape theinterpolation string
14.	Interpolation in Here document

Put class into interpolation block : Interpolating « Language Basics « Ruby