[Solved] What will be the output of the following Ruby code?module Greetings def self.say_hello "Hello!" end end puts Greetings.say_hello | Ruby

Ruby - Modules and Mixins

What will be the output of the following Ruby code?

module Greetings
  def self.say_hello
    "Hello!"
  end
end

puts Greetings.say_hello

AHello!

BGreetings.say_hello

CNoMethodError

DSyntaxError

Step-by-Step Solution

Solution:

Step 1: Understand module method definition
The method say_hello is defined as a module method using self., so it can be called on the module directly.
Step 2: Evaluate the method call output
Calling Greetings.say_hello returns the string "Hello!", which is printed by puts.
Final Answer:
Hello! -> Option A
Quick Check:
Module method call returns string output [OK]

Quick Trick: Module methods use self. and can be called directly [OK]

Common Mistakes:

Master "Modules and Mixins" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

What will be the output of the following Ruby code?