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affordable web hosting solution Fortunately, Ruby has a standard message, to_s, which it sends to any object it wants to render as a string. Let's try it on our song. aSong = Song.new("Bicylops", "Fleck", 260) aSong.to_s » "#<Song:0x401b499c>" That wasn't too useful---it just reported the object id.
affordable web hosting solution So, let's override to_s in our class. As we do this, we should also take a moment to talk about how we're showing the class definitions in this book. In Ruby, classes are never closed: you can always add methods to an existing class. This applies to the classes you write as well as the standard, built-in classes. All you have to do is open up a class definition for an existing class, and the new contents you specify will be added to whatever's there.
affordable web hosting solution This is great for our purposes. As we go through this chapter, adding features to our classes, we'll show just the class definitions for the new methods; the old ones will still be there. It saves us having to repeat redundant stuff in each example. Obviously, though, if you were creating this code from scratch, you'd probably just throw all the methods into a single class definition. Enough detail! Let's get back to adding a to_s method to our Song class.
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