Build a Record Collection

You are creating a function that aids in the maintenance of a musical album collection. The collection is organized as an object that contains multiple albums which are also objects. Each album is represented in the collection with a unique `id` as the property name. Within each album object, there are various properties describing information about the album. Not all albums have complete information. The `updateRecords` function takes 4 arguments represented by the following function parameters: - `records` - an object containing several individual albums - `id` - a number representing a specific album in the `records` object - `prop` - a string representing the name of the album’s property to update - `value` - a string containing the information used to update the album’s property **Objective:** Fulfill the user stories below and get all the tests to pass to complete the lab. **User Stories:** 1. Your function must always return the entire `records` object. 2. If `value` is an empty string, delete the given `prop` property from the album. 3. If `prop` isn't `tracks` and `value` isn't an empty string, assign the `value` to that album's `prop`. 4. If `prop` is `tracks` and `value` isn't an empty string, but the album doesn't have a `tracks` property, create an empty array and add `value` to it. 5. If prop is `tracks` and `value` isn't an empty string, add `value` to the end of the album's existing `tracks` array. **Note:** A copy of the `recordCollection` object is used for the tests. Your function should not directly refer to the `recordCollection` object, only the function parameter. # --before-each-- ```js 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' } }; ```