Hey all,
I loosely grasp the way the algorithm works, but I’m just having a particular issue understanding how the records[id][prop] works.
I feel like I missed the point on an important lesson before and the Basic Javascript course is so huge it makes it difficult to figure out which lesson to go back to to understand what I’m missing.
My confusion lies with why you put the parameters in that order - my mind is telling me that records[id][prop] is making records call to a nested array, but I know that id and prop are both parameters, just like records. Records doesn’t seem to be defined in the setup code so I don’t get what’s happening here. Help?
(Sorry if this is nonsense).
// Setup
const recordCollection = {
2548: {
albumTitle: 'Slippery When Wet',
artist: 'Bon Jovi',
tracks: ['Let It Rock', 'You Give Love a Bad Name']
},
2468: {
albumTitle: '1999',
artist: 'Prince',
tracks: ['1999', 'Little Red Corvette']
},
1245: {
artist: 'Robert Palmer',
tracks: []
},
5439: {
albumTitle: 'ABBA Gold'
}
};
// Only change code below this line
function updateRecords(records, id, prop, value) {
if (prop !== 'tracks' && value !== "") {
records[id][prop] = value;
} else if (prop === tracks && records[id].hasOwnProperty("tracks")= false) {
records[id][prop]= [value];
} else if (prop === tracks && value !== "") {
tracks[] = value();
} else if (value === "") {
delete prop;
}
return records;
}
updateRecords(recordCollection, 5439, 'artist', 'ABBA');
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Challenge: Record Collection
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