Free Ruby Association Ruby-Programmer-Gold Exam Questions

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 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?

In Ruby, effectively using blocks is essential for controlling flow and data processing. Review the following Ruby code snippet:numbers = [1, 2, 3, 4, 5]sum = 0numbers.each { |number| sum += number }squared_numbers = numbers.map { |number| number ** 2 } Based on this code, which two of the following statements are correct about the blocks used in the context of the each and map methods?

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?

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?