Comment by MichaelGG

Does anyone have some really good examples of metaprogramming? I bought a book on Ruby Metaprogramming and the examples seemed to be all about disguising a string parameter as a member name. So for instance:

  foo.somefield

Versus:

  foo["somefield"]

And variations on that theme. While it's cute, I guess (you're not type checking anyways so nothing lost, I suppose), I don't really get it.