// Инициализация
var collection = {
"2548": {
"album": "Slippery When Wet",
"artist": "Bon Jovi",
"tracks": [
"Let It Rock",
"You Give Love a Bad Name"
]
},
"2468": {
"album": "1999",
"artist": "Prince",
"tracks": [
"1999",
"Little Red Corvette"
]
},
"1245": {
"artist": "Robert Palmer",
"tracks": [ ]
},
"5439": {
"album": "ABBA Gold"
}
};
// Копия коллекции для тестов
var collectionCopy = JSON.parse(JSON.stringify(collection));
// Измените код только под комментарием.
function updateRecords(id, prop, value) {
console.log(id,prop,value);
if(prop != "tracks" && value != "") {
collection[id][prop] = value;
console.log(1,id,prop,value)
} if (prop == "tracks" && !collection[id].hasOwnProperty("tracks")) {
collection[id].tracks = [];
console.log(2)
} if (prop == "tracks" && value != "") {
collection[id][prop].push(value);
console.log(3)
} if (value === "") {
delete collection[id][prop];
console.log(4)
}
return collection;
}
// Измените значение аргумента для проверки
updateRecords(5439, "artist", "ABBA");
