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JavaScript

Posted by Younes Zoughbi
Younes Zoughbi
6,233 Points

Two-dimensional arrays? Printing questions and answers at the same time?

Hi, If anyone could give me some insight. As I'm struggling to find the error in my code.

Once I run the program, both the questions and the answers are prompted on screen.

Thank you in advance!

Code Below:

 var questions = [
 [ 'What is 10+10?', 20],
 [ 'What is the Capital of Italy?', 'Rome'],
 [ 'What is the Capital of France?', 'Paris']
];

var correctAnswers = 0;
var question;
var answer;
var response;
var html;

function print(message) {
  document.write(message);
}

for (var i = 0; i < questions.length; i +=1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = parseInt(prompt(questions));

  if (response === answer) {
    correctAnswers += 1;
  }                 
}

html = "You got " + correctAnswers + " question(s) right.";
print(html);

End of Code.

2 Answers

Emre Karakuz
Emre Karakuz
9,162 Points

in your code , the varible named response is equal to parseInt(prompt(questions));

response = parseInt(prompt(questions));

You are printing all of the array with prompt.(because questions is equal to all of your questions and answers)

it should be :

response = parseInt(prompt(question));

as you decleared question = questions[i][0];

Younes Zoughbi
Younes Zoughbi
6,233 Points
Younes Zoughbi
Younes Zoughbi
6,233 Points

Ah, I see the mistake I have made.

That clears it up very well.

Thank you very much Emre. I appreciate your help.