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{
"data": {
"question": {
"text": "Name any two south Indian states: __1__, __2__",
"audio": "",
"image": ""
},
"answers": [
[ "Tamil Nadu", "TN", "Tamil Nad" ],
[ "Andhra Pradesh", "AP", "Andra", "Andrapradesh" ],
[ "Kerala", "Kerela", "KL" ],
[ "Telungana", "Telangana", "TS" ],
[ "Karnataka", "KA" ]
],
"data":{
"expAnswers": [
[ "tamilnadu", "tn", "tamilnad" ],
[ "andhrapradesh", "ap", "andra", "andrapradesh" ],
[ "kerala", "kerela", "kl" ],
[ "telungana", "telangana", "ts" ],
[ "karnataka", "ks" ]
],
"expAnsIndices": [
[ 0, 1 ], [ 0, 2 ], [ 1, 2 ], [ 0, 3 ], [ 1, 3 ], [ 2, 3 ], [ 0, 4 ], [ 1, 4 ], [ 2, 4 ], [ 3, 4 ]
]
}
},
"config": {
"eval_ignore_case": true,
"eval_ignore_whitespaces": true
}
} |
Evaluation logic
Pseudo Code (Err.. Actual code!)
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function evaluate(answers) { // preprocess user answers - remove embedded white spaces, and convert to lower case, based on the config answers = _.map(answers, function (a) { var ans = a; if (qData.config.eval_ignore_whitespaces) ans = ans.trim().replace(/\s/g, ''); if (qData.config.eval_ignore_case) ans = ans.toLowerCase(); return ans; }); // get user answer indices. (this is the index in the expAnswers array in which a match is found, // -1 if no match found) var userAnsIndices = _.map(answers, function (answer) { return _.findIndex(qData.data.data.expAnswers, function (expAns) { return _.contains(expAns, answer); }); }); // Sort the userAnsIndices array elements in case if unordered evaluation if (qData.config.eval_unordered) userAnsIndices = _.sortBy(userAnsIndices, function (u) { return u }); console.log(userAnsIndices); // if the userAnsIndices are found in the expAnsIndices, then the question is solved! var isSolved = _.some(qData.data.data.expAnsIndices, function (expAns) { return _.isEqual(expAns, userAnsIndices); }); console.log('Solved', isSolved); } |