Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
jon kelson
5,149 PointsInit in build a vending machine app ?
Hi why did we only Init the inventory in the protocol in build a vending machine app ? And Not the other items ?
Thanks
1 Answer
Safwat Shenouda
12,362 PointsThe other items are initialized in the class that implement the protocol outside the init method:
class VendingMachine: VendingMachineType {
let selection: [VendingSelection] = [.Soda, .DietSoda, .Chips, .Cookie, .Sandwich, .Wrap, .CandyBar, .PopTart, .Water, .FruitJuice, .SportsDrink, .Gum]
var inventory: [VendingSelection : ItemType]
var amountDeposited: Double = 10.0
required init(inventory: [VendingSelection: ItemType] ) {
self.inventory = inventory
}...