Freecodecamp: Basic Javascript: Record Collection [Need 1 more checkpoint]

Freecodecamp: Basic Javascript: Record Collection [Need 1 more checkpoint]
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#1

Hi guys, for the record collection challenge, I have all the checkpoints down except for this one:

After updateRecords(5439, “tracks”, “Take a Chance on Me”), tracks should have “Take a Chance on Me” as the last element.

Please take a look at my code below and give me a hint of what’s wrong with it. I can’t seem to find out.

Thank you



function updateRecords(id, prop, value) {
if (prop != “tracks” && value != “”) {
collection[id][prop] = value;
}
else if (prop == “tracks” && (collection[id].hasOwnProperty(“tracks”) == false)) {
collection[id][prop] = value;
}
else if (prop == “tracks” && value != “”) {
collection[id][prop].push(value);
}
else if (value == “”) {
delete collection[id][prop];
}
else {
return undefined;
}
return collection;
}

// Setup
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”
}
};
// Keep a copy of the collection for tests
var collectionCopy = JSON.parse(JSON.stringify(collection));

// Only change code below this line
function updateRecords(id, prop, value) {
if (prop != “tracks” && value != “”) {
collection[id][prop] = value;
}
else if (prop == “tracks” && (collection[id].hasOwnProperty(“tracks”) == false)) {
collection[id][prop] = value;
}
else if (prop == “tracks” && value != “”) {
collection[id][prop].push(value);
}
else if (value == “”) {
delete collection[id][prop];
}
else {
return undefined;
}
return collection;
}

// Alter values below to test your code
updateRecords(5439, “artist”, “ABBA”);


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**Link to the challenge:**
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/record-collection

#2

Nevermind. I solved it myself.

need to put bracket sign around [value] in this line of code

else if (prop == “tracks” && (collection[id].hasOwnProperty(“tracks”) == false)) {
collection[id][prop] = value;

because this property is not defined yet.