Basic JavaScript - Record Collection

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

I’d like to know why my code isn’t match with a problem solution as it wants, and also, how this code actually works.

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

  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/111.0.0.0 Safari/537.36 Edg/111.0.1661.62

Challenge: Basic JavaScript - Record Collection

Link to the challenge:

2

In this first part, you assume that the tracks array exists without checking

2 Likes
3

Your code seems to give the below error in the console:

image
image735×227 7.97 KB

You may want to review when you can and can’t use . notation.

2 Likes
4

Thank you. I’ll try fixing it again.

5

Thank you for suggestion. I’m still a bit confused with those two notations. I’m reviewing about that.

6

This FCC article is possibly helpful?

7

This was the class that covered the subject (about 10 lessions behind what you’re currently working on) in case you needed a refresher.

8

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.