[Solved] Identify the error in the following Ruby code that tries to chain methods:class Person def initialize(name) @name = name end def greet puts "Hello, #{@name}!" end def farewell puts "Goodbye, #{@name}!... | Ruby

Ruby - Functional Patterns in Ruby

Identify the error in the following Ruby code that tries to chain methods:

class Person
  def initialize(name)
    @name = name
  end

  def greet
    puts "Hello, #{@name}!"
  end

  def farewell
    puts "Goodbye, #{@name}!"
  end
end

p = Person.new("Sam")
p.greet.farewell

Ainitialize method missing return statement

Bfarewell method is misspelled

CCannot create Person object with new

Dgreet method does not return self, so chaining fails

Step-by-Step Solution

Solution:

Step 1: Check method return values
greet prints a message but returns nil (default for puts).
Step 2: Understand chaining requirement
For chaining, greet must return self to allow calling farewell next.
Final Answer:
greet method does not return self, so chaining fails -> Option D
Quick Check:
Method chaining needs methods to return self [OK]

Quick Trick: Ensure methods return self to chain calls [OK]

Common Mistakes:

Assuming puts returns self
Thinking initialize needs explicit return
Believing object creation is the problem

Master "Functional Patterns in Ruby" in Ruby

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Ruby Quizzes

Identify the error in the following Ruby code that tries to chain methods:

Step 1: Check method return values

Step 2: Understand chaining requirement

Final Answer:

Quick Check:

Want More Practice?