[Solved] What will be the output of the following Ruby code?module Outer module Inner def self.greet "Hello from Inner" end end end puts Outer::Inner.greet | Ruby

Ruby - Modules and Mixins

What will be the output of the following Ruby code?

module Outer
  module Inner
    def self.greet
      "Hello from Inner"
    end
  end
end

puts Outer::Inner.greet

AOuter::Inner

BHello from Inner

CNoMethodError

DSyntaxError

Step-by-Step Solution

Solution:

Step 1: Understand module nesting and method call
The method greet is defined as a class method on the nested module Inner.
Step 2: Access the method using the namespace operator
Calling Outer::Inner.greet correctly accesses the method and returns the string.
Final Answer:
Hello from Inner -> Option B
Quick Check:
Nested module method call = "Hello from Inner" [OK]

Quick Trick: Use :: to call nested module methods [OK]

Common Mistakes:

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