Challenge Record collection question

JavaScript
#1

Tell us what’s happening:
This test isn’t working " After updateRecords(collection, 5439, "tracks", "Take a Chance on Me") , tracks should have Take a Chance on Me as the last element."
What should I change in my code?

Your code so far


// Setup
var collection = {
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(object, id, prop, value) {
if(prop !== 'tracks' && value!= ""){
  object[id][prop] = value;
} else if (prop === 'tracks' && 'tracks' === null){
  object[id][value] = [];
} else if (prop == 'tracks' && value != ''){
  object[id][prop].push(value);
} else if (value === '')
   delete object[id][prop];

return object;
}

updateRecords(collection, 5439, 'artist', 'ABBA');

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0.

Challenge: Record Collection

Link to the challenge:

#2

this is always false, a string can’t never be equal to null

an other thing to keep in mind is that in an if/else if/else chain only one single condition is executed

1 Like
#3

Your problem is very similar to the one on this thread from yesterday:

#4

object[id].hasOwnProperty this was what I had to change and add value array to obj[id][prop], somehow I didn’t realise how to work on the keyword “property” from the statement of the exercise. Thank you!

#5