Record Collection-what is wrong with it?

Record Collection-what is wrong with it?
0.0 0

#1

Tell us what’s happening:

Your code so far

// Setup
var collection = {
    "2548": {
      "album": "Slippery When Wet",
      "artist": "Bon Jovi",
      "tracks": [ 
        "Let It Rock", 
        "You Give Love a Bad Name" 
      ]
    },
    "2468": {
      "album": "1999",
      "artist": "Prince",
      "tracks": [ 
        "1999", 
        "Little Red Corvette" 
      ]
    },
    "1245": {
      "artist": "Robert Palmer",
      "tracks": [ ]
    },
    "5439": {
      "album": "ABBA Gold"
    }
};
// Keep a copy of the collection for tests
var collectionCopy = JSON.parse(JSON.stringify(collection));

// Only change code below this line
function updateRecords(id, prop, value) {
  if (value === '') {
    delete collection[id][prop];
  } else if (prop !== 'tracks') {
    collection[id][prop] = value;
  } else {
    collection[id][prop].push(value);
  
  return collection;
}
}

// Alter values below to test your code
update(5439, "artist", "ABBA");

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299.

Link to the challenge:


#2

You didn’t put anything in the “Tell us what’s happening” section. Please tell us what is going on and what steps you have tried to fix it.


#3

In your last else statement collection[id][prop].push(value); cannot push the value to the property because for the test you should be calling updateRecords(5439, "artist", "ABBA"); , that property doesn’t exist for that id.

If you console.log(collection[id][prop]) in the updateRecords() function you will see it returns undefined.

The instructions address this here:

“If prop is ‘tracks’ but the album doesn’t have a “tracks” property, create an empty array before adding the new value to the album’s corresponding property.”


#4

Oh,sorry

// Setup
var collection = {
“2548”: {
“album”: “Slippery When Wet”,
“artist”: “Bon Jovi”,
“tracks”: [
“Let It Rock”,
“You Give Love a Bad Name”
]
},
“2468”: {
“album”: “1999”,
“artist”: “Prince”,
“tracks”: [
“1999”,
“Little Red Corvette”
]
},
“1245”: {
“artist”: “Robert Palmer”,
“tracks”: [ ]
},
“5439”: {
“album”: “ABBA Gold”
}
};

// Keep a copy of the collection for tests
var collectionCopy = JSON.parse(JSON.stringify(collection));

// Only change code below this line
function updateRecords(id, prop, value) {
if (value === ‘’) {
delete collection[id][prop];
} else if (prop !== ‘tracks’) {
collection[id][prop] = value;
} else {
collection[id][prop].push(value);

return collection;
}
}

// Alter values below to test your code
update(5439, “artist”, “ABBA”);


#5

You still haven’t described your problem at all. You haven’t told us what you need help with.


#6

It says,update is not defined


#7

You’re calling a function update but the name of the function that you wrote is updateRecords.


#8

I have deleted updaterecords but it still does not pass