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JavaScript

Posted by renedoukhan
renedoukhan
4,761 Points

I cant find where's my mistake in that basic js program

var bonneReponse; var retourBonne; var retourFaux;

var quizz= [ ['Nom des trois Patriarches?', 'Abraham, Yitshak, Yaakov'],
['Ma date de naissance?', '29-03'], ['Mon smartphone?', 'lg g3'] ];

for (i=0; i<= quizz.length; i++) { var reponse = prompt (quizz[i][0]); if (reponse === (quizz[i][1])){ bonneReponse+= 1; retourBonne = retourBonne + ' ' + (quizz[i][1])

  } else {
  retourFaux = retourFaux + '  ' + (quizz[i][1])  

  }

}

document.write ('<p>' + 'Vous avez un score de ' + bonneReponse + 'bonnes réponses sur 3' +'</p>');

document.write ('<h1>Bonnes réponses : ' + retourBonne +'</h1>'); document.write ('<h1>Mauvaises réponses: ' + retourFaux + '</h1>')

Sam Baines
Sam Baines
4,315 Points

It looks like you might be missing some semi-colons (;) in your code - so first just double check all your syntax for simple errors.

1 Answer

Leslie Heinzen
Leslie Heinzen
26,662 Points

Hi Rene,

Your logic looks fine, but when you define your variables at the top, try establishing types to avoid running into NaN and undefined errors later on. For example:

var bonneReponse = 0; 
var retourBonne = ''; 
var retourFaux = '';

One more thing: the condition in your for loop should be i < quizz.length, not i <= quizz.length. Otherwise you will get an error.

Hope that helps.

Happy coding,
Leslie