updateRecords challenge

Tell us what’s happening:

When I test my code everything seems to be right, except one thing.

After updateRecords(collection, 1245, "tracks", "Addicted to Love") , tracks should have the string Addicted to Love as the last element. THIS FAILS.

I am not able to quite understand why, so if someone knows, would you be so kind to help me? Thanks in advance.

  **Your code so far**

// 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(object, id, prop, value) {
if(prop != 'tracks' && value != "") {
  object[id][prop] = value;


} else if(prop === 'tracks' && object[id].hasOwnProperty("tracks") === false ) {

  object[id][prop] = [value];

} else if(prop === 'tracks' && value != "") {
  object[id][prop].push[value];


} else if(value === "") {
  delete object[id][prop];
}

return object;


}

updateRecords(collection, 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/89.0.4389.82 Safari/537.36.

Challenge: Record Collection

Link to the challenge:

are you sure this is the correct syntax for push?

Thank you a lot! Parentheses was the problem. Thank you again.