[Solved] What happens when you include a custom module as a mixin in a Ruby class? — Ans: The class gains access to the module's methods as instance methods | Ruby

Ruby - Modules and Mixins

What happens when you include a custom module as a mixin in a Ruby class?

AThe module becomes a subclass of the class

BThe module's methods become class methods of the class

CThe class loses its original methods

DThe class gains access to the module's methods as instance methods

Step-by-Step Solution

Solution:

Step 1: Understand module inclusion
Including a module adds its methods as instance methods to the class.
Step 2: Effects on class methods and inheritance
The class keeps its own methods and does not inherit from the module; the module's methods are not class methods.
Final Answer:
The class gains access to the module's methods as instance methods -> Option D
Quick Check:
Include module = instance methods added [OK]

Quick Trick: Include adds module methods as instance methods [OK]

Common Mistakes:

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What happens when you include a custom module as a mixin in a Ruby class?