weheartswift.com Dictionary Excercise 11.6 Leaderboard

leaderBoard.swift

var people: [[String:Any]] = [
    [
        "firstName": "Calvin",
        "lastName": "Newton",
        "score": 13
    ],
    [
        "firstName": "Garry",
        "lastName": "Mckenzie",
        "score": 23
    ],
    [
        "firstName": "Leah",
        "lastName": "Rivera",
        "score": 10
    ],
    [
        "firstName": "Sonja",
        "lastName": "Moreno",
        "score": 3
    ],
    [
        "firstName": "Noel",
        "lastName": "Bowen",
        "score": 16
    ]
]

func >(lhs: [String:Any], rhs: [String:Any]) -> Bool {
    guard let lhsScore = lhs["score"] as? Int,
          let rhsScore = rhs["score"] as? Int else {
        return false
    }
    
    
    return lhsScore > rhsScore
}


var sorted = people.sort(>)

for (index, person) in sorted.enumerate() {
    guard let firstName = person["firstName"],
          let lastName = person["lastName"],
          let score = person["score"] else {
            break
    }
    
    print("\(index + 1). \(firstName) \(lastName) - \(score)")
    
}