I am new to java script and it is really confusing

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.
i dont know how to get past this stage

  **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) {
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/90.0.4430.212 Safari/537.36

Challenge: Record Collection

Link to the challenge:

2

It looks like you haven’t started yet. What have you tried? What parts of the challenge description are confusing you?

3

it looked really confusing. I attempted it again but I still got stuck

4

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

  **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 !== 'tracks' && value !== '') {
  records[id][prop] = value;
} else if (prop === 'tracks' && record[id].hasOwnProperty('tracks') === false) {
  records[id][prop] = [value];
} else if (prop === 'tracks' && value !== '') {
  record[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/90.0.4430.212 Safari/537.36

Challenge: Record Collection

Link to the challenge:

5

First of all - JavaScript is hard. Programming is hard. Don’t get down on yourself. Some of these challenges get people tripped up - this is one of them. Go easy on yourself.

But it looks like you essentially have it solved, you just have one problem.

When I run your code, I get the error:

ReferenceError: record is not defined

So, you are referencing a variable called “record” that doesn’t exist. When I fix that (in two places), your code passes for me.

1 Like
6

Thank you very much. The code passed for me

7

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