JS Code challenge not working and I don't know why

Tell us what’s happening:
I can’t find out what’s wrong in my code
for some reason

(recordCollection, 2548, "tracks", "")

does not delete the tracks property despite having the right if statement

  if(value === ""){
    delete records[id][prop];

And there’s another error as well, what is wrong with this code? I really don’t get it

  **Your code so far**

// Setup
var 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.hasOwnProperty("tracks")){
  records[id]["tracks"] = [value];
}else if(prop === "tracks" && value !== ""){
}else if(value === ""){
  delete records[id][prop];

return records;

updateRecords(recordCollection, 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/90.0.4430.212 Safari/537.36.

Challenge: Record Collection

Link to the challenge:

This will assign the value [""] to records[id].tracks and your final else if will not be evaluated.


(recordCollection, 2548, "tracks", "")

does have a “tracks” property, so the records.hasOwnProperty(“tracks”) condition will not be met hence it’ll skip to the next if, unless i’m missing something?

This isn’t doing what you think it’s doing. It’s checking whether records has a property named “tracks”, which it doesn’t.

I have the same problem but don’t get anything

Ohhh!! I meant to write !records[id].hasOwnProperty(“tracks”), everything works fine now, thanks!


Can I get some help too please

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Thank you.

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