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

Jake Ford
Jake Ford
9,230 Points
Posted by Jake Ford
Jake Ford
9,230 Points

The way I did the Quiz

Just wanted to share how I did it for any feedback. I realize it is not as readable as the way Dave did. Anyone else do it like this?

var qna = [
    ['What is Jake\'s favorite color?', 'green'],
    ['What is Justin\'s favorite color?', 'blue'],
    ['What is Mom\'s favorite color?', 'green'],
    ['What is Dad\'s favorite color?', 'purple']
];
var correct = 0;
var guess;

for( var i = 0; i < qna.length; i++ ){

    guess = prompt( qna[i][0] );
    guess = guess.toLowerCase();

    if( guess === qna[i][1] ){
        correct++;
    }
}

document.write('You have guessed ' + correct + ' questions correctly out of 4 total.');

1 Answer

Thomas Nilsen
Thomas Nilsen
14,957 Points
Thomas Nilsen
Thomas Nilsen
14,957 Points

I think this line

guess = prompt( qna[i][0] );
guess = guess.toLowerCase();

Is kind of unnecessary. Just write it like this:

guess = prompt( qna[i][0] ).toLowerCase();
Jake Ford
Jake Ford
9,230 Points
Jake Ford
Jake Ford
9,230 Points

You're right! Thanks!