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

Examine the following Ruby code snippet that utilizes refinements:module LengthConversion refine String do def to_meters self.to_f / 3.281 end endend class MeasurementConverter using LengthConversion  def convert_to_meters(length_in_feet) length_in_feet.to_meters endend converter = MeasurementConverter.newoutside_conversion = "10".to_meters result1 = converter.convert_to_meters("10")result2 = outside_conversion What will be the values of result1 and result2, respectively?

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?

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?