Swift - Convert Array to Dictionary

Question

I just want convert an array of Player Names into a dictionary Scoreboard, giving everyone an initial score of 0.

Meaning...

var playerNames =          


        

Answer 1

You can use reduce(into:) as you suspected. You simply need to declare the initial value as [String:Int]() to be an empty Dictionary of the required type, then simply set the value of all keys in playerNames to 0.

var playerNames = ["Harry", "Ron", "Hermione"]
var scoreBoard = playerNames.reduce(into: [String:Int](), { currentScores,player in
    currentScores[player] = 0
})