Record-collection javas

  why is not my code getting accepted here?

// Setup
var collection = {
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(collection,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 !== ""){
 else if(value === "") {
   delete collection[id][prop];
 return collection;

console.log(updateRecords(5439,"tracks","Take a Chance on Me"));
console.log(updateRecords(1245,"tracks","Addicted To Love"));
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36.

Challenge: Record Collection

Link to the challenge:

All of these are using the wrong function signature, which is causing your script and thus the test suite to fail.

I suspect you may have gotten confused when copying test cases for an old version of the challenge.

where can i get complete updated for better understanding of its logic?

If you delete all of those lines, the tests will pass. Iā€™m not sure what part you are asking for help about.

This function call has three arguments.

But the function takes four arguments.

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