Swift Code Viewer

1// Example Swift code
2import Foundation
3
4/// A model representing a product in the inventory system
5struct Product {
6    let id: UUID
7    var name: String
8    var price: Double
9    var description: String?
10    var isAvailable: Bool = true
11    
12    // Initialize with required properties
13    init(name: String, price: Double, description: String? = nil) {
14        self.id = UUID()
15        self.name = name
16        self.price = price
17        self.description = description
18    }
19    
20    // Format the price as currency
21    func formattedPrice() -> String {
22        let formatter = NumberFormatter()
23        formatter.numberStyle = .currency
24        formatter.currencyCode = "USD"
25        return formatter.string(from: NSNumber(value: price)) ?? "$\(price)"
26    }
27    
28    // Apply a discount to the product
29    mutating func applyDiscount(percentage: Double) {
30        guard percentage > 0, percentage <= 100 else { return }
31        let discountAmount = price * (percentage / 100)
32        price -= discountAmount
33    }
34}
35
36// Extension to add additional functionality
37extension Product: Equatable, Hashable {
38    static func == (lhs: Product, rhs: Product) -> Bool {
39        return lhs.id == rhs.id
40    }
41    
42    func hash(into hasher: inout Hasher) {
43        hasher.combine(id)
44    }
45}