Tell us what’s happening:
I keep getting this error when running my code. I pulled the sample from the help page and it worked but I don’t know why mine isn’t working. The error is also thrown when running it with no additional code.
updateRecords(…)[5439].tracks.pop is not a function
Your code so far
// 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 != '' && value == '') {
delete collection[id][prop];
}
else if (prop != 'tracks' && value != '') {
collection[id][prop] = value;
}
else if (prop == 'tracks' && value != '') {
if (collection[id][prop]) {
collection[id][prop].push(value);
}
else {
collection[id][prop] = value;
}
}
return collection;
}
// Alter values below to test your code
updateRecords(5439, "artist", "ABBA");
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36
.
Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/record-collection/