Record Collection- my own code

I do not know what is wrong with my code that did not run perfectly. Can anyone help me with that? I based on the hint code to do my own code but it does not seem to work

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": [ 
        "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 !== "tracks" && value !== "" )
  {collection[id][prop]= value; }
  else if (prop == "tracks" && collection[id].hasOwnProperty("track") == false)
  {collection[id][prop]=[value]; }
  else if (prop == "tracks" && value !== "")
  {delete collection[id][prop];}
  return collection;

// Alter values below to test your code
updateRecords(5439, "artist", "ABBA");

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36.

Link to the challenge:

seems to work for me. just change last line to
a=updateRecords(5439, “artist”, “ABBA”);
then press f12 in firefox to see the console output

1 Like

I guess this is trivial

you’re missing a “s” in the 3rd line of your function i.e. “track” instead of “tracks”

function updateRecords(id, prop, value) {
  if (prop !== "tracks" && value !== "" )
  {collection[id][prop]= value; }
  else if (prop == "tracks" && collection[id].hasOwnProperty("track**s**") == false)
1 Like

thank you so much

It works now, such a stupid mistakes.