Web Reference: Dec 19, 2024 · A comprehensive guide to understanding the three ways to add methods from modules to classes in Ruby: include, extend, and prepend. Though include is the most common way of importing external code into a class, Ruby provides also two other ways to achieve that: extend and prepend. However, they don’t have the same behavior at all, and these differences are often misunderstood by Ruby developers. include is the keyword that we will use within our classes to provide access to the methods defined in a module as instancemethods in our class. In order to do so, we will first define a module. Now, all we have to do to give our classes access to the instance method can_be_housebroken? as it is defined in our IndoorPet module is add include Indoor...
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