Record Collection JS

JavaScript
1

Tell us what’s happening:

I have no idea how to even start this, can someone please explain this to me.

Your code so far


// 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(prop !=="tracks" && value){
  collection[id][prop] = value;
  else {
    if()
  }
} 
  
  return collection;
}

// Alter values below to test your code
updateRecords(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/77.0.3865.90 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/record-collection/

2

It would probably take an hour or so to explain this, and much longer to master this

But I take it, that you are having problems with understanding the record-collection problem. Care to give us a little more detail on what you’re hung up on?

3

this is a good start, once you fix the syntax: you never close the if statement so having an else statement there is giving syntax errors

check again how you write an if/else if/else chain, fixing where you put the parenthesis and you will see that you will start completing a good number of tests

4

Here is my code so far, I don’t understand what is going on?

// 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(prop !==“tracks” && value){
collection[id][prop] = value;
}
else{
collection[“push”] = “value”;
}

delete collection.prop;
}
return collection;

// Alter values below to test your code
updateRecords(5439, “artist”, “ABBA”);

5

are you trying to use the push method? I sggest you review how it works, because what you are doing here is creating a new property of the collection object

collection = {
   "push": "value",
   "2548": ...,
   ...
}