Basic JavaScript - Record Collection

JavaScript
1

Tell us what’s happening:

Describe your issue in detail here.

I don’t understand the “else” part, the rest is fine.
Thanks in advance.

Regards.

Your code so far

// 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) { // Access target album 
                                                   //in record collection

  const album = records[id];               // find album
 
  if (value === "") {                      // Update the album
    delete album[prop];
  } else if (prop !== "tracks") {
    album[prop] = value;
  } else {                                                                             // THIS PARTS I DONT UNDERSTAND
    album["tracks"] = album["tracks"] || [];    // THIS PARTS I DONT UNDERSTAND
    album["tracks"].push(value);                         // THIS PARTS I DONT UNDERSTAND
  }
  // Return the full collection
  return records;
}
updateRecords(recordCollection, 5439, 'artist', 'ABBA');

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Challenge Information:

Basic JavaScript - Record Collection

2

Hey I have linked an article by @jwilkins.oboe go through it it will help you understand it better

How to Solve freeCodeCamp’s Record Collection Challenge

Happy coding

2 Likes
3

Thank you so much, it’s was explained to the very detail so that anyone with very little knowledge could follow it. Good job,

4

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