Help me with this problem

Tell us what’s happening:
Describe your issue in detail here.
i cant continue the code don’t know how to think or how the logic is working

  **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 &&value){
records[id][prop] = value;
}
else if(!record[id].hasOwnProperty("tracks")
){
  var array=[];
  record[id][prop]= array.push(value);
  
}
else if(value){
  record[id][prop]=prop.push(value);
}
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/91.0.4472.124 Safari/537.36

Challenge: Record Collection

Link to the challenge:

Hey! Welcome to the freecodecamp forums!
Can you be more specific about the problem you’re facing?

I formatted your code to make it easier to read:

// Only change code below this line
function updateRecords(records, id, prop, value) {
  if (prop && value) {
    records[id][prop] = value;
  } else if (!record[id].hasOwnProperty("tracks")) {
    var array = [];
    record[id][prop] = array.push(value);
  } else if (value) {
    record[id][prop] = prop.push(value);
  }
  return records;
}

I don’t understand what this line is supposed to do:

  if (prop && value) {

I also don’t see anywhere that you handle the case where you need to delete the property from the record.

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