What's wrong with my code? (i'm prob gonna fell stupid when its a simple typo))

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

  **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') {
  if((records[id][prop]).isArray()) {
  (records[id]['tracks']).push(value);
  } else {
    records[id]['tracks'] = [value];
  }
}

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/91.0.4472.106 Safari/537.36

Challenge: Record Collection

Link to the challenge:

2

Hello there.

Do you have a question?

If so, please edit your post to include it in the Tell us what’s happening section.

Learning to describe problems is an important part of learning how to code.

Also, the more information you give us, the more likely we are to be able to help.

This line will not work if records[id]["tracks"] does not exist.

3

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