Ruby by Example

Chapter Recap

This chapter’s mandate was to use techniques you’ve already learned at some broader levels. However, there were still a few new concepts or approaches.

• Equidistant Letter Sequences and larger-scale text searches

• Extracting single characters from Strings

• The chr method

• Modeling natural selection with methinks.rb

• Subclassing (Children < Array) and inheritance

• Calculating differences between Strings

• select_fittest : inject versus sort_by

• Genuine random versus pseudo-random

• Meta-mutation with methinks_meta.rb

• Alphabetizing inspect through overriding

Our next chapter is the second of two chapters that consider more complex programs. While this chapter mainly expanded upon concepts we’ve already learned, the next one uses an exciting new type of ...