Record_Collection

JavaScript
1

Tell us what’s happening:
My test won’t run

Your code so far
function updateRecords(id, prop, value) {
if(value === “”) delete collection[id][prop];
else if(prop === “tracks”) {
collection[id][prop] = collection[id][prop] || ;
collection[id][prop].push(value);
} else {
collection[id][prop] = value;
}

return collection;
};
}

console.log(updateRecords(5439, “artist”, “ABBA”));


// 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"
}
};
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] = collection[id][prop] || [];
  collection[id][prop].push(value);
} else {
  collection[id][prop] = value;
}

return collection;
};
}

console.log(updateRecords(5439, "artist", "ABBA"));

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.116 Safari/537.36 OPR/67.0.3575.130.

Challenge: Record Collection

Link to the challenge:

2

Hey mate, I think you’ve missed out a tiny detail. Try surrounding that delete operation with curly brackets { } and you will see the magic happening.