Basic JavaScript - Record Collection

JavaScript
1

Tell us what’s happening:

If prop isn’t tracks and value isn’t an empty string, assign the value to that album’s prop. I did not understand this rule. What is mean prop isnt tracks, i am stuck in here to understand. I added this comment near the challenge in the code block.

// 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 (value === "") {
    delete prop.albumTitle,

  } else if (prop ) // If **prop** isn't **tracks** and value isn't an empty string, assign the value to that album's prop. I did not understand this rule. What is mean prop isnt tracks, i am stuck in here to understand. 

// Thank you.
  
  return records;

}

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

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Challenge Information:

Basic JavaScript - Record Collection

2

Putting questions in the middle of the code can make them easy to miss.

“prop isn’t tracks” means you need to use a string comparison operator, === or !==

3

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