The Book of Ruby

Exploring Further

Using the techniques outlined in this chapter, you could create anything from a natural-language parser that can be taught rules of grammar to an adventure game that can learn new puzzles.

In this book I’ve covered a lot of ground—from “hello world” to dynamic programming. You’ve explored most of the important and powerful features of the Ruby language. The rest is up to you.

This is where the adventure really begins.

Digging Deeper

There may be times when you want to make sure that your Ruby objects cannot be modified in the ways described in this chapter. Here you will learn how to do this.

Freezing Objects

With all these ways of modifying objects at your disposal, you may be concerned that objects are at risk of being modified unintentionally. ...