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

Devon Deason
Devon Deason
7,061 Points
Posted by Devon Deason
Devon Deason
7,061 Points

For part 1: My code works, but looks way different than Dave's solution .

The code I came up is quite different from the solution Dave gives. As far as I can tell it operates the same way and gives the same results for PART 1. Is his method better, or did I just find a more succinct way to do the same thing?

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


var quiz = [
  ['Who is the Green Arrow?', 'Oliver Queen'],
  ['Who is Deadpool?', 'Wayde Wilson'],
  ['Who is the Flash?', 'Barry Allen'],
  ['Who is Peter Parker?', 'Spiderman'],
  ['Who is Batman?' , 'Bruce Wayne']
];
var correct = 0;
  for (var i = 0; i <=4; i += 1){
  var answer = prompt(quiz[i][0]);
    if (answer === quiz[i][1]) {
        correct += 1;
  }
  }

var html= 'You got ' + correct + ' questions correct, and ' + (5 - correct) + ' questions wrong.';

 print(html);
Chyno Deluxe
Chyno Deluxe
16,936 Points

//Fixed Code Presentation

1 Answer

Chyno Deluxe
Chyno Deluxe
16,936 Points

I am not sure what his code looks like but yours look pretty clean. I wouldn't change much other than create a variable "wrong" and extending the if statement with an else statement that adds 1 to the wrong counter. Like this.

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

var quiz = [
    ['Who is the Green Arrow?', 'Oliver Queen'],
    ['Who is Deadpool?', 'Wayde Wilson'],
    ['Who is the Flash?', 'Barry Allen'],
    ['Who is Peter Parker?', 'Spiderman'],
    ['Who is Batman?' , 'Bruce Wayne']
];

var correct = 0,
    wrong = 0;

for (var i = 0; i <= 4; i += 1){
    var answer = prompt(quiz[i][0]);
    if (answer === quiz[i][1]) {
        correct += 1;
    } else {
        wrong += 1;
    }
}

var html= 'You got ' + correct + ' questions correct, and ' + wrong + ' questions wrong.';

print(html);

very minimal change but makes it easier to read and less code to change if you added more questions.

I hope this helps.

Devon Deason
Devon Deason
7,061 Points
Devon Deason
Devon Deason
7,061 Points

Awesome, thanks for the input!