1.3. OOP in Ruby
Ruby has all the elements more generally associated with OOP languages, such as objects with encapsulation and data hiding, methods with polymorphism and overriding, and classes with hierarchy and inheritance. It goes further and adds limited metaclass features, singleton methods, modules, and mixins.
Similar concepts are known by other names in other OOP languages, but concepts of the same name may have subtle differences from one language to another. This section elaborates on the Ruby understanding and usage of these elements of OOP.
1.3.1. Objects
In Ruby, all numbers, strings, arrays, regular expressions, and many other entities are actually objects. Work is done by executing the methods belonging to the object:
3.succ ...
Get The Ruby Way: Solutions and Techniques in Ruby Programming, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
