Free Ruby-Programmer-Gold Mock Exam – Practice Online Confidently

Evaluate the following Ruby code snippet that involves the forwardable and date modules:require 'forwardable'require 'date' class Project extend Forwardable def_delegators :@deadline, :month, :day  attr_accessor :name attr_reader :deadline  def initialize(name, deadline) @name = name @deadline = Date.parse(deadline) endend project = Project.new("Ruby Exam Prep", "2024-06-30")result1 = project.monthresult2 = project.dayproject.deadline = Date.parse("2024-07-15")result3 = project.month What will be the values of result1, result2, and result3, respectively?

In Ruby, which of the following literals correctly creates a Hash object with default values for undefined keys?

In Ruby, the use of blocks is a fundamental concept for iterating over collections and executing code repeatedly. Examine the following Ruby code snippet:numbers = [1, 2, 3, 4, 5]sum = 0numbers.each { |number| sum += number }doubled = numbers.map { |number| number * 2 } Based on this code, which two of the following statements are true regarding the use and functionality of blocks?

Consider the following Ruby code snippet involving the implementation and usage of the Comparable module:class TimeRange include Comparable  attr_reader :start_time, :end_time  def initialize(start_time, end_time) @start_time = start_time @end_time = end_time end  def (other) return nil unless other.is_a?(TimeRange) [start_time, end_time] [other.start_time, other.end_time] endend time_range1 = TimeRange.new(10, 20)time_range2 = TimeRange.new(15, 25)time_range3 = TimeRange.new(10, 20) result1 = time_range1 time_range3  What will be the values of result1, result2, and result3, respectively?

Analyze the following Ruby code snippet in the context of class design and instance variable management:class Book  attr_reader :title, :author  @@total_books = 0  def self.total_books    @@total_books  end  def initialize(title, author)    @title = title    @author = author    @@total_books += 1  endendclass Library  attr_reader :books   def initialize    @books = []  end  def add_book(book)    @books