https://github.com/pmarcosfelipe/javascript-top-movies
JavaScript Top Movies
https://github.com/pmarcosfelipe/javascript-top-movies
Last synced: 3 months ago
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JavaScript Top Movies
- Host: GitHub
- URL: https://github.com/pmarcosfelipe/javascript-top-movies
- Owner: pmarcosfelipe
- Created: 2021-09-18T16:57:40.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2021-09-18T17:03:35.000Z (over 3 years ago)
- Last Synced: 2025-01-05T17:21:18.348Z (5 months ago)
- Language: JavaScript
- Size: 90.8 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Find top watchlisted movies among friends
You are working on a movie fanpage social site. It requires a new functionality to be implemented: find top watchlisted movies among friends.
# Setup
Follow these steps:
1. `npm install` – install dependencies
2. `npm test` – run all tests once (this will be used to evaluate your solutions)
# Task
1. Implement `MoviesAnalyzer#topWatchlistedMoviesAmongFriends` method that will return an array of **top four** movie titles, that have been most watchlisted by friends of a given user.
2. If there are no such movies, then an empty list should be returned or as many movies as possible.
3. Movies that have equal watchlist count, should be ordered alphabetically.
## Example data
The data (_movies_ and _users_) is available in `data.json`. Testcases are defined in `testcases.json`.
### Movies collection
```javascript
{
"title": "The Shawshank Redemption",
"duration": "PT142M",
"actors": [ "Tim Robbins", "Morgan Freeman", "Bob Gunton" ],
"ratings": [],
"favorites": [66380, 7001, 9250, 34139],
"watchlist": [15291, 51417, 62289, 6146, 71389, 93707]
},
{
"title": "The Godfather",
"duration": "PT175M",
"actors": [ "Marlon Brando", "Al Pacino", "James Caan" ],
"ratings": [],
"favorites": [15291, 51417, 7001, 9250, 71389, 93707],
"watchlist": [62289, 66380, 34139, 6146]
},
{
"title": "The Dark Knight",
"duration": "PT152M",
"actors": [ "Christian Bale", "Heath Ledger", "Aaron Eckhart" ],
"ratings": [],
"favorites": [15291, 7001, 9250, 34139, 93707],
"watchlist": [51417, 62289, 6146, 71389]
},
{
"title": "Pulp Fiction",
"duration": "PT154M",
"actors": [ "John Travolta", "Uma Thurman", "Samuel L. Jackson" ],
"ratings": [],
"favorites": [15291, 51417, 62289, 66380, 71389, 93707],
"watchlist": [7001, 9250, 34139, 6146]
},
{
"title": "Schindler's List",
"duration": "PT195M",
"actors": [
"Liam Neeson",
"Ralph Fiennes",
"Ben Kingsley"
],
"ratings": [{"userId": 62289, "rating": 8},{"userId": 66380, "rating": 5},{"userId": 6146, "rating": 6},{"userId": 71389, "rating": 7}],
"favorites": [62289, 66380, 6146, 71389],
"watchlist": [15291, 51417, 7001, 9250, 93707]
},
```
### Users collection
```javascript
{
"userId": 15291,
"email": "[email protected]",
"friends": [7001, 51417, 62289]
},
{
"userId": 7001,
"email": "[email protected]",
"friends": [15291, 51417, 62289, 66380]
},
{
"userId": 51417,
"email": "[email protected]",
"friends": [15291, 7001, 9250]
},
{
"userId": 62289,
"email": "[email protected]",
"friends": [15291, 7001]
}
```
## Example output
Your implementation should return following output for **userId=62289** for example data:
```json
[
"Schindler's List",
"The Lord of the Rings: The Return of the King",
"Pulp Fiction",
"The Shawshank Redemption"
]
```
In the example above, user with id `62289` has two friends: user with `id=15291` and with `id=7001`. `Schindler's List` is watchlisted by both users, so it will be the most watchlisted.