Record Collection - Not passing 2nd and 3rd last tests

JavaScript
1

Hey guys struggling to see what is wrong here:

// Setup
const 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(prop) === false) {
    records[id][prop] = [value];
  } else if (prop === "tracks" && value !== "") {
    records[id][prop].push(value);
  } else if (value === "") {
    delete records[id][prop];
  }
  return records;
}

updateRecords(recordCollection, 5439, 'artist', 'ABBA');

I am not passing the tests where "

  • After updateRecords(recordCollection, 2468, "tracks", "Free"), tracks should have the string 1999 as the first element.

  • After updateRecords(recordCollection, 2548, "tracks", ""), tracks should not be set"

The first one, I’ve noticed Free is completely replacing the other tracks, but I’m using push?

Where am I going wrong?

2

What does this check?

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