Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Javano Collins
Javano Collins
9,108 Points

Why so much variables?

alert('FILL IN THE BLANKS.');
questions = [
  ['Malcom ___', 'X'],
  ['Martin Luther ___ Jr', 'King'],
  ['Elijah ___', 'Muhammad']
]

correctAnswers = 0;
wrongAnswers = 0;

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


for ( let i = 0; i < questions.length; i++) {
  ask = prompt(questions[i][0]);
  if ( ask = questions[1] ) {
    correctAnswers++;
  } else {
    wrongAnswers++;
  }
}

print("<h1>You got " + correctAnswers + " correct</h1>");
print("<h1>You got " + wrongAnswers + " wrong</h1>");

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

I see a reasonably concise program with an appropriate complement of variables. Maybe you could explain why the variables seem excessive. Can you refactor the code so it still works the same but doesn't need the variables?

Javano Collins
Javano Collins
9,108 Points

That is my code. However, I asked this question before seeing the second part of the challenge. In the second part of the challenge, the extra variables by the instructor totally made sense.