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

Enemuo Felix
Enemuo Felix
1,895 Points

Quiz challenge part 1

Please i just did the challenge, but the code won't run. Someone should kindly point me to the right direction. I already added comments to the areas i'm not sure of. I will also appreciate if other wrong areas are pointed out.Steven Parker

function print(message) {
  document.write(message);
}
var count = 0;
var questions = [
 ['What letter is the first alphabet?', 'a'],
 ['Who won the last world cup?', 'germany'],
 ['What is the capital of germany?', 'berlin']
];
var correctAnswer = [];
var wrongAnswer = [];
for (var i = 0; i > questions.length; i +=1) {
  var userInput = prompt(questions[i][0]);
  if(questions[i][1].indexOf(userInput.toLowerCase() ) > -1) {
    correctAnswer.push(questions[i][1]);// trying to push the correct input into the correctAnswer array//
    count+=1;
  } else {
    wrongAnswer.push(questions[i][1]);// trying to apply the same with line 16 but this time in the wrongAnswer array//
  }
}
print('<ol>' + correctAnswer + '</ol>');// to print out the correctAnswer to the page with each of them numbered//
print('<ol>' + wrongAnswer + '</ol>');//same with line 22//

2 Answers

Steven Parker
Steven Parker
229,606 Points

:bell: Hi, I was alerted by your tag.

Take a look at the conditional in your loop:

for (var i = 0; i > questions.length; i +=1) {

Since I begins at 0, it will not pass the condition of being larger than the length of the questions array. So the loop won't run. This may just be a typo, and perhaps you meant to use "<" instead of ">".

Enemuo Felix
Enemuo Felix
1,895 Points

Oh my..... I can't believe I missed that. I need to learn a way of sporting such little errors. Thank you very much steve. Pls, there's something else, the arrays doesn't seem to be numbered . Am i using the <ol></ol> tag wrongly?

Steven Parker
Steven Parker
229,606 Points

The ordered list should contain list items ("li"). You'll probably want a loop for each array to generate each individual array item wrapped in a set of li tags.

Happy coding!

Enemuo Felix
Enemuo Felix
1,895 Points

Thank you so much. Will try and find a way to include that