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

Review the following Ruby code snippet:def execute_operations(operations) operations.each do |operation| result = send(operation) break result if result == :error endend def operation1 :successend def operation2 :errorend def operation3 :successend result = execute_operations([:operation1, :operation2, :operation3]) What will be the value of result after executing this code?

Review the following Ruby code snippet:def divide_numbers(x, y) x / yrescue ZeroDivisionError => e puts "Error: #{e.message}"end result1 = divide_numbers(10, 2)result2 = divide_numbers(10, 0)result3 = begin divide_numbers(10, '5') rescue TypeError => e "Caught: #{e.class}" endresult4 = divide_numbers(10, nil) rescue "Invalid operation" What will be the values of result1, result2, result3, and result4, 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

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?

Examine the following Ruby code snippet:a = 2b = 3c = '4'result1 = a * bresult2 = a * cresult3 = c * bresult4 = c + a