A universal way to decode a bundle

Bundle-Decodable.swift

extension Bundle {
    func decode<T: Decodable>(_ file: String) -> T {
        guard let url = self.url(forResource: file, withExtension: nil) else {
            fatalError("Failed to locate \(file) in bundle.")
        }

        guard let data = try? Data(contentsOf: url) else {
            fatalError("Failed to load \(file) from bundle.")
        }

        let decoder = JSONDecoder()

        guard let loaded = try? decoder.decode(T.self, from: data) else {
            fatalError("Failed to decode \(file) from bundle.")
        }

        return loaded
    }
}

// From 100 Days of SwiftUI (Day 40) by Paul Hudson: https://www.hackingwithswift.com/books/ios-swiftui/using-generics-to-load-any-kind-of-codable-data