Unable to wrap my head around challenge

1

I’m currently stuck on challenge # 210, record collection. Can anyone help me out with this?

2

What exactly you need the help with?

3

Sorry for the late response. Well, I keep getting the error: “TypeError: Cannot read property ‘ABBA’ of undefined”
Here’s my function:

function updateRecords(id, prop, value) {
if (collection[id][prop] == “tracks” && collection[id][prop][value] === “”) {
arr.collection[id].tracks.push();
}

if (collection[id][prop] == “tracks” && collection[id][prop][value] !== “”){
arr.collection[id].tracks.push(value);
}

if (collection[id][prop][value] === “”){
delete collection[id][prop];
}

return collection;

}

4

Assuming test case updateRecords(5439, "artist", "ABBA");

In your first if your check looks like this:

if (collection[5439]["artist"] == "tracks" && ...

But collection doesn’t have "artist" property for id 5439 so you get an error.

From the challenge’s description:

If prop isn’t “tracks” and value isn’t empty (“”), update or set the value for that record album’s property.

So you should check
if (prop !== "tracks" && value !== "") {...
and so on…

I wrote a similar post in another thread, but SPOILER ALERT it includes solution: Record collection challange - #49 by jenovs - JavaScript - The freeCodeCamp Forum

1 Like
5

Sorry again for the late response, university has me running circles lol
Thank you so very much for the help! That fixed it for me :slight_smile: