Test your knowledge of Ruby Take this quiz to see how well you know the Ruby programming language. rihanna80 published on October 26, 20230 responses 0 « Previous Next » Questions in vertical order 1/12 Which of the following is a valid way to define a class in Ruby? class MyClass() class MyClass end def MyClass module MyClass end 2/12 What is the symbol used to denote a line comment in Ruby? // /* */ # -- 3/12 Which of the following is a valid way to print 'Hello, World!' in Ruby? log 'Hello, World!' console.print('Hello, World!') print('Hello, World!') puts 'Hello, World!' 4/12 What is the result of the expression '3 + 4' in Ruby? 34 7 3 + 4 Syntax Error 5/12 Which of the following is a correct way to create a new array in Ruby? my_array = [] my_array = Array[] my_array = Array.new() my_array = array{} 6/12 What does the 'nil' value represent in Ruby? Zero Nothing or absence of value True NaN 7/12 Which of the following is not a logical operator in Ruby? && | ! != 8/12 What is the correct way to check if a variable 'x' is equal to 5 in Ruby? x =! 5 x != 5 x = 5 x == 5 9/12 Which method is used to convert a string to uppercase in Ruby? lowercase upcase uppercase to_upper 10/12 What is the output of the following code? x = [1, 2, 3, 4, 5] puts x[3] 5 Syntax Error [4] 4 11/12 Which method is used to remove the last element from an array in Ruby? remove_last remove delete_last pop 12/12 What is the output of the following code? x = 10 y = x > 5 ? 'Yes' : 'No' puts y Yes No YesNo Syntax Error
