Tell us what’s happening:
I just confuse because when i try to set prop to value, i will not get the answer. After i look on other’s hint, they will use records[id][prop] to set the prop to value. Why we use this method, as it looks like 2d array and why not just use recordCollection.id.prop @ recordCollection[id][prop]? Thank you.
Your code so far
// Setup
const 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 != ""){
recordCollection.id.prop = value;
}
}
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/106.0.0.0 Safari/537.36
Challenge: Basic JavaScript - Record Collection
Link to the challenge:
