Extending Core Ruby Classes

Unearth the potential of extending core Ruby classes with our insightful tutorial. Get a detailed understanding of how to add new methods to classes, with clear examples using the String and Array classes.

Key Insights

• This tutorial teaches how to extend the string class by adding a new method.

• It provides an exercise that shows how additional information can be added to a given class by opening a class declaration and inserting a new method.

• It explains the power of Ruby, where this method can apply not only to our own classes, but also to the classes that come with Ruby or Rails.

• The tutorial demonstrates how to add a new method to a core Ruby class, using the String class as an example.

• It informs that Rails extends many core Ruby classes and adds a bunch of functionality to them, which is a common and potent technique in professional Rails development.

• Lastly, it provides another example by extending the Array class and adding a method to it.