Unit 5, Part 3: Music Collection

This unit, we'll be exploring objects by creating an application to help maintain a record collection. We will be creating objects using object literal syntax.

Topics Covered

• Objects
• HTML & CSS

Part 3 - Building a Music Collection

Update the 3-music-collection.js file to do the following:

While working through the features below, make sure to commit after you complete a task! Your commit message should reflect what you added or changed since the previous commit.

Required Features

• Create an empty array named myCollection.

• Create a function named addToCollection. It should have this basic structure:

  function addToCollection(collection, title, artist, yearPublished) {
    // your code here...
  }

  • This function should:
    • Take in a collection parameter. (This allows the function to be reused to add an album to any array of album objects).
    • Take in the album's title, artist, yearPublished as parameters.
    • Create a new object having the above properties.
      • NOTE: Your object's properties must have title, artist, and yearPublished in order for this assignment's automated tests to work correctly!
    • Add the new object to the end of the collection array.
    • return the newly created object.

• Use and Test the addToCollection function:

  • Add 6 albums to the myCollection array. Aim to have a mix of both same and different artists and published years. (Feel free to share your musical interests, or make stuff up. Totally fine either way).
  • console.log each album as added using the function's returned value.
  • After all are added, console.log the myCollection array.

• Create a function named showCollection. This function should:

  • Take in a collection parameter. (This allows it to be reused to show any array of album objects).
  • Loop through the collection and console.log each album's information formatted within a single string, like: TITLE by ARTIST, published in YEARPUBLISHED.

• Use and test the showCollection function.

• Create a function named findByArtist. This function should:

  • Take in a collection parameter. Remember, we want to be able to search any collection!
  • Take in an artist (string) parameter.
  • Create an empty array to hold any matching results, if any.
  • Loop through the collection and add any album objects with a matching artist to the array.
  • Return the array with the matching results. (If no results are found, an empty array should be returned).

• Use and test the findByArtist function.

  • Make sure to test with an artist you know is in the collection, as well as an artist you know is not in your collection.
  • Check that for artists with multiple matches, all are returned.

When testing your functions, write all tests in the JavaScript file!

Stretch Goal

• Create a function called search that will allow for searching by artist and yearPublished. This function should:

  • Take in a collection parameter.
  • Take in a searchCriteria parameter. Create your solution based on a search object that has these properties:

  { artist: 'Ray Charles', yearPublished: 1957 }

  • The returned output from search should meet these requirements:
    • Return a new array of all items in the collection matching all of the search criteria.
    • If no results are found, return an empty array.
    • If there is no search object, an empty search object, or missing artist/yearPublished data provided as input, return all albums from the collection being searched.

Extra Stretchy Stretch Goals

NOTE: The following stretch goals do not have tests associated with them. This means it's even more important to use your own console.log skills to verify that your code behaves as you expect.

• Add an array of tracks to each of your album objects. Each track should have a name and duration. You will need to update the functions to support this new property:

  • Update the addToCollection function to also take an input parameter for the array of tracks.
  • Update the showCollection function to display the list of tracks for each album with its name and duration.

    TITLE by ARTIST, published in YEARPUBLISHED:
        1. NAME: DURATION
        2. NAME: DURATION
        3. NAME: DURATION
    TITLE by ARTIST, published in YEARPUBLISHED:
        1. NAME: DURATION
        2. NAME: DURATION
  

• Update search to allow an optional trackName search criteria.

  • If the search object has a trackName property, only search for that, ignoring any artist or yearPublished properties.

Make sure to test all your code!

Assignment Submission

Check in your repo, then turn in your work via the Prime Academy Assignment Application in the Prime Portal, as usual and don't hesitate to hit up the Slack channel as needed!