Basic JavaScript - Record Collection

JavaScript
1

Tell us what’s happening: why is my code not working?
Describe your issue in detail here.

Your code so far
function updateRecords(records, id, prop, value) {
if (prop !== ‘tracks’ && value !== “”){
records[id][prop] = value;
} else if (prop === “tracks” && records.hasOwnProperty(“tracks”) === false) {
records[id][prop] = [value];
} else if (prop === “tracks” && value !== “”){
records[id][prop].push(value);
} else if (value === “”){
delete records[id][prop];
}
return records;
}

// 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 (prop !== 'tracks' && value !== ""){
    records[id][prop] = value;
  } else if (prop === "tracks" && records.hasOwnProperty("tracks") === false) {
    records[id][prop] = [value];
  } else if (prop === "tracks" && value !== ""){
    records[id][prop].push(value);
  } else if (value === ""){
    delete records[id][prop];
  }
  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/106.0.0.0 Safari/537.36 OPR/92.0.0.0

Challenge: Basic JavaScript - Record Collection

Link to the challenge:

2

when something isn’t working we should look for errors being reported. (or tests failing).
Do you have any of these?

3

yes its saying " * After updateRecords(recordCollection, 2468, "tracks", "Free"), tracks should have the string 1999 as the first element.

  • Failed:After updateRecords(recordCollection, 2548, "tracks", ""), tracks should not be set"
4

There is an issue on this line.

5

else if (prop === “tracks” && records[id].hasOwnProperty(“tracks”) === false)

1 Like
6

thanks for your assistance sir

7

Good work figuring it out! You were really close with what you had.