Build a Record Collection - Build a Record Collection

JavaScript
1

Tell us what’s happening:

I’ve been stuck on this exercise for a couple weeks. I’ve used MDN and Google to try and solve all of the stories. I’m getting there, but I need help on a couple of tests.

Your code so far

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'
  }
};
function updateRecords(records, id, prop, value) {
  if (value === "") {
    // rule #2, delete property if value is empty
    delete records[id][prop];
  } else if (prop !== "tracks" && value !== "") {
    // rule #3, assign value
    records[id][prop] = records[id][prop].value;
  } else {
    records[id][prop] = records[id][prop] || []; // rule #4, create an array if missing
   records[id][prop].push([value]);        // rule #5, add value to array
  }
   return records; //rule #1, always return records object
}

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Challenge Information:

Build a Record Collection - Build a Record Collection

2

I think this line is a problem. What’s going on here?

3

I’m trying to assign value to the prop if it’s not tracks and not an empty string.

4

But what exactly are you assigning (what is on the right hand side)?

5

From what I am seeing, I think that if the property is anything other than tracks, and the value is not an empty string, I want that non-empty string to be the value for the property.

6

But what is on the right hand side of the =?

7

The value to assign as the prop

8

Hmm that’s not quite what it looks like to me. This looks like the value property of the existing quantity records[id][prop] instead of the new value that you want to assign.

9

I see. That makes sense. I’ll work on that now to have the assignment select the new value. Thank you very much.

1 Like