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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Build a Quiz Challenge, Part 1 Solution

renedoukhan
renedoukhan
4,761 Points
Posted by renedoukhan
renedoukhan
4,761 Points

Why is my code wrong ?

Even when the response given is wrong, the program states 'Right'. Why ?

var quizz = [ ['Date de la fête nationales française ?','14 juillet'], ['Prénom du président français actuel ?','François'], ['Capitale de la France','Paris'], ['Dans quel continent se situe la France ?','Europe'] ]; var p=0

for (i=0; i<=quizz.length;i++){ var question = prompt (quizz [i][0]); if (question == quizz [i][1]){ document.write ('Right'); p++; }else { alert('Wrong'); } } document.write ('You have ' + p + 'right anwers');

Thank you !

3 Answers

Grace Kelly
Grace Kelly
33,990 Points
Grace Kelly
Grace Kelly
33,990 Points

Hi Rene, your code executes fine for me. When I get a question wrong an alert comes up saying "Wrong." and when I get a question right, "Right" is printed to the screen. However I noticed that every time I get a question right it prints to the screen so I end up seeing "RightRightRight" after I complete the quiz, so maybe that's why you think your code is not working??

renedoukhan
renedoukhan
4,761 Points
renedoukhan
renedoukhan
4,761 Points

Thanks Grace

Well, it's working now. I don't know what happened. There's just one thing that is still not working : that part document.write ('You have ' + p + 'right anwers'); That sentence doesn't show on the document.

Err, is your name really GRace Kelly :) Best

Grace Kelly
Grace Kelly
33,990 Points
Grace Kelly
Grace Kelly
33,990 Points

Hmm I would try changing your for loop to say less than rather than less than/equal to, try changing it to this:

for (i=0; i<quizz.length;i++){ //change <= to <
  var question = prompt (quizz [i][0]); 
  if (question == quizz [i][1]){ 
    document.write ('Right'); p++; 
  }else { 
    alert('Wrong'); 
  } 
}

hope that helps and yep that's my name! :)

renedoukhan
renedoukhan
4,761 Points
renedoukhan
renedoukhan
4,761 Points

It does. I understand my mistake now. Thanks !