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Ruby

Nicolas Hémidy
Nicolas Hémidy
8,481 Points
Posted by Nicolas Hémidy
Nicolas Hémidy
8,481 Points

Definition of variables - Arrays

Hello everyone,

I think i misunderstood the whole process of :

  • how define a variable
  • how use it in a array
  • how call a method than use the variable of the array

Here is my code :

def q1()
  print "Please tell me your name : "
end
def q2()
  print "Do you want to try a little quiz ? (yes/no): "
end
def q3()
  print "Here is my first question! What is my best french movie?: "
end
def r1()
  print "What a lovely name !"
end
def r2() 
  print "Ok, nice to meet you "
end
def r3() 
  print "Correct!"
end
def r4()
  print "Brilliant!"
end
def r5()
  print "Wrong.."
end
a1 = "julie"

questionvar = [q1,q2,q3]
resultvar = [r1,r2,r3,r4,r5]
answervar = [a1]

def question(question, answer, result1, result2)
  answeruser = gets.chomp.downcase
  if answer.include? answeruser
    result1
  else
    result2
  end
end

question(questionvar[0], answervar[0], resultvar[0], resultvar[1])

Could you please explain me what is wrong ? I really thank you in advance, Nicolas

Nicolas Hémidy
Nicolas Hémidy
8,481 Points
Nicolas Hémidy
Nicolas Hémidy
8,481 Points

Ok, I think that I found the solution.

q1 = "Please tell me your name : "
q2 = "Do you want to try a little quiz ? (yes/no): "
q3 = "Here is my first question! What is my best french movie?: "
r1 = "What a lovely name ! "
r2 = "What a great name! "
r3 = "Ok, nice to meet you "
r4 = "Yeahhh, let's go! "
r5 = "Ok, your choice :)"
r6 = "Correct!"
r7 = "Wrong.."
r8 = "Sorry, I did not understand"
a1 = "julie"
a2 = "nicolas"
a3 = "yes"
a4 = "no"

questionvar = [q1,q2,q3]
resultvar = [r1,r2,r3,r4,r5,r6,r7,r8]
answervar = [a1, a2, a3, a4]

def question(question, answer1, answer2, result1, result2, result3)
  print question
  answeruser = gets.chomp.downcase
  if answeruser.include? answer1
    print result1
  elsif answeruser.include? answer2
    print result2
  else
    print result3
  end
end

question(questionvar[0], answervar[0], answervar[1], resultvar[0], resultvar[1], resultvar[2])
question(questionvar[1], answervar[2], answervar[3], resultvar[3], resultvar[4], resultvar[7])

If someone can confirm that I am on the right track, could be great :)

Thank you, Nicolas

2 Answers

Luke Fritz
Luke Fritz
10,255 Points
Luke Fritz
Luke Fritz
10,255 Points

The code in your comment should run.

But you will get some odd behavior for your conditional. gets() returns a string, so include?() will be true even if only part of their answer matches, like 'juliet' or 'blahnicolasblah'.

Here is a similar example showing creating an array with a nested array. Also, I switched include?() to ==.

questions = [
  "Please tell me your name : ",
  "Do you want to try a little quiz ? (yes/no): "
]

answers = [
  ["julie", "nicolas"],
  ["yes", "no"]
]

results = [
 ["What a lovely name ! ", "What a great name! ", "Ok, nice to meet you "],
 ["Yeahhh, let's go! ", "Ok, your choice :)", "Sorry, I did not understand"]
]


def question(question, answers, result)
  print question
  answeruser = gets.chomp.downcase
  if answeruser == answers[0]
    print result[0]
  elsif answeruser == answers[1]
    print result[1]
  else
    print result[2]
  end
end

question(questions[0], answers[0], results[0])
question(questions[1], answers[1], results[1])
Nicolas Hémidy
Nicolas Hémidy
8,481 Points
Nicolas Hémidy
Nicolas Hémidy
8,481 Points

Hi Luke !

I really thank you for your answer. I used nested arrays to improve my quiz

questions = [
  "Please tell me your name : ", "Do you want to try a little quiz ? (yes/no): ", "Here is my first question! What is my best french movie?: ", "Here is my second question! What is my favorite entrepreneur?: "
]

answers = [
  ["julie", "nicolas"],
  ["yes", "no"],
  ["le premier jour du reste de ta vie"],
  ["steve jobs"]
]

results = [
 ["What a lovely name ! ", "What a great name! ", "Ok, nice to meet you "],
 ["Yeahhh, let's go! ", "Ok, your choice :)", "Sorry, I did not understand"],
 ["Correct! ", "Wrong.. ", "Sorry, I did not understand"]
]


def question(question, answers, result)
  print question
  answeruser = gets.chomp.downcase
  if answeruser == answers[0]
    puts result[0]
  elsif answeruser == answers[1]
    puts result[1]
  else
    puts result[2]
  end
end

question(questions[0], answers[0], results[0])
question(questions[1], answers[1], results[1])
question(questions[2], answers[2], results[2])
question(questions[3], answers[3], results[2])

I just have one question, why did you add an x as the fourth argument of the method question ? def question(question, answers, result, x)

Thank you in advance, Nicolas

Luke Fritz
Luke Fritz
10,255 Points
Luke Fritz
Luke Fritz
10,255 Points

Yeah, that looks good. I like that there is a relationship between the separate pieces of data (the same index in each array). It feels easier to read.

You get to start doing some really cool stuff once you get into creating classes.

Oops, I forgot to delete the x. It was part of some debugging code I had included so I wouldn't have to key in the user guess each time. I had deleted the other stuff. I'll update my answer.