// 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 != ""){
if (prop == "tracks"){
if (collection[id].hasOwnProperty(prop)){
collection[id][prop].push(value);
} else {
collection[id][prop] = [];
}
} else {
collection[id][prop] = value;
}
} else {
delete collection[id][prop];
}
return collection;
}
// Alter values below to test your code
updateRecords(5439, "artist", "ABBA");
I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
See this post to find the backtick on your keyboard. The “preformatted text” tool in the editor (</>
) will also add backticks around text.
Note: Backticks are not single quotes.
what kind of help do you need? what do you not understand?
I cant pass the challenge. I dont know what wrong with my code.
this is what I get in my code:
After updateRecords(5439, “tracks”, “Take a Chance on Me”), tracks should have “Take a Chance on Me” as the last element.
this is your code for when prop === "tracks"
if the object doesn’t already have the tracks
property you create an empty array, and nothing else after that. You are not adding any value to this new array.
I got it. Thank you ma’am for helping.
here’s my code now:
function updateRecords(id, prop, value) {
if (value != ""){
if (prop == "tracks"){
if (collection[id].hasOwnProperty(prop)){
collection[id][prop].push(value);
} else {
collection[id][prop] = [];
collection[id][prop].push(value);
}
} else {
collection[id][prop] = value;
}
} else {
delete collection[id][prop];
}
return collection;
}