Best data structure for multiple choice quiz in JavaScript

Question

I have this dataset at the moment that I am using for a quiz application (how bad is it?):

   var questions =
        [
        'Question 1 text', 
        'Question 2 text'
        ]

    var answers =
        // Question 0
        [
            ['Choice 0', // Right answer
            'Choice 1',
            'Choice 2']
        ]
        // Question 1
        [
            ['Choice 0',
            'Choice 1', // Right answer
            'Choice 2']
        ]

    var correctChoice = 
        [
        '0', // Question 0, choice 0
        '1' //  Question 1, choice 1
        ]

So I am relying on the "invisible index" to link them all together, which is kinda hard to maintain. Is there a better way to go about this? Are objects better? Recommendations, or best practices in general?

I have been thinking about JSON - would that be a good alternative?

kitti · Accepted Answer · 2012-05-11 00:08:40Z

9

Something like this should do:

var quiz = [
  {question: 'Question 1 text', answers: ['answer 1', 'answer 2'], correct: 0},
  {question: 'Question 2 text', answers: ['answer 1', 'answer 2'], correct: 1}
];

edited May 11, 2012 at 0:08

kitti

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answered May 11, 2012 at 0:05

Abdullah Jibaly

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Comments

Danilo Valente · Accepted Answer · 2012-05-11 00:08:37Z

0

var quiz = {
    questions: [
        'Question 1 text', 
        'Question 2 text'
    ],
    answers: [
        [//Question 0
            'Choice 0', // Right answer
            'Choice 1',
            'Choice 2'
        ],
        [//Question 1
            'Choice 0',
            'Choice 1', // Right answer
            'Choice 2'
        ]
    ],
    correctChoice: [
        '0', // Question 0, choice 0
        '1' //  Question 1, choice 1
    ]
}

edited May 11, 2012 at 0:08

answered May 11, 2012 at 0:02

Danilo Valente

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1 Comment

kitti Over a year ago

Not really; that's pretty much the same.

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