Graduates-exercise.js

function graduates (students) {
    //Inisialisasi Variabel
    var objTotal = {};
    var nilai = 0;
    var nama = "";
    var kelas = "";

    //Proses
    for (var i = 0; i < students.length;i++){
        kelas = students[i].class;
        nilai = students[i].score;
        nama = students[i].name;
        if (nilai > 75){
            if (!objTotal[kelas]){
                objTotal[kelas] = [{name: nama, score:nilai}];
            } else {
                objTotal[kelas].push({name: nama, score: nilai});
            }
        }
    }
    //Output
    return objTotal;
}
  
console.log(graduates([
{
    name: 'Dimitri',
    score: 90,
    class: 'foxes'
},
{
    name: 'Alexei',
    score: 85,
    class: 'wolves'
},
{
    name: 'Sergei',
    score: 74,
    class: 'foxes'
},
{
    name: 'Anastasia',
    score: 78,
    class: 'wolves'
}
]));

// {
//   foxes: [
//     { name: 'Dimitri', score: 90 }
//   ],
//   wolves: [
//     { name: 'Alexei' , score: 85 },
//     { name: 'Anastasia', score: 78 }
//   ]
// }

console.log(graduates([
{
    name: 'Alexander',
    score: 100,
    class: 'foxes'
},
{
    name: 'Alisa',
    score: 76,
    class: 'wolves'
},
{
    name: 'Vladimir',
    score: 92,
    class: 'foxes'
},
{
    name: 'Albert',
    score: 71,
    class: 'wolves'
},
{
    name: 'Viktor',
    score: 80,
    class: 'tigers'
}
]));

// {
//   foxes: [
//     { name: 'Alexander', score: 100 },
//     { name: 'Vladimir', score: 92 }
//   ],
//   wolves: [
//     { name: 'Alisa', score: 76 },
//   ],
//   tigers: [
//     { name: 'Viktor', score: 80 }
//   ]
// }

console.log(graduates([])); //{}