Currently, I have an array declared as :
let VitamineARetinol = "VitamineARetinol"
let VitamineABetacarotene = "VitamineABetacarotene"
let VitamineC = "VitamineC"
let VitamineD = "VitamineD"
let Calories = "Calories"
typealias ListOfAliment = [String: [String: Double]]
let Data: ListOfAliment = [
"Orange": [VitamineARetinol: 0.5, VitamineC: 0.3, VitamineD: 0.98, Calories: 100],
"Pomme": [VitamineARetinol: 0.2, VitamineC: 0.2, VitamineD: 0.38, Calories: 120],
"Poire": [VitamineARetinol: 0.1, VitamineC: 0.7, VitamineD: 0.58, Calories: 140],
"Laitue": [VitamineARetinol: 0.3, VitamineC: 0.1, VitamineD: 0.92, Calories: 105],
"Banane": [VitamineARetinol: 0.7, VitamineC: 0.01, VitamineD: 0.63, Calories: 122]
]
var ListOfAlimentClassed = Data
I need to sort it from the Calories key, while keeping all the array data, like this:
ListOfAlimentClassed = [
"Orange": [VitamineARetinol: 0.5, VitamineC: 0.3, VitamineD: 0.98, Calories: 100],
"Laitue": [VitamineARetinol: 0.3, VitamineC: 0.1, VitamineD: 0.92, Calories: 105],
"Pomme": [VitamineARetinol: 0.2, VitamineC: 0.2, VitamineD: 0.38, Calories: 120],
"Banane": [VitamineARetinol: 0.7, VitamineC: 0.01, VitamineD: 0.63, Calories: 122],
"Poire": [VitamineARetinol: 0.1, VitamineC: 0.7, VitamineD: 0.58, Calories: 140]
]
How could I efficiently do this in Swift? Please help!
Create a struct for your data and use an array for it instead
struct Aliment {
let name: String
let vitamineARetinol: Double
let vitaminC: Double
let vitaminD: Double
let calories: Double
}
var array = [
Aliment(name: "Orange", vitamineARetinol: 0.5, vitaminC: 0.3, vitaminD: 0.98, calories: 100),
Aliment(name: "Pomme", vitamineARetinol: 0.2, vitaminC: 0.2, vitaminD: 0.38, calories: 120),
]
array.sort(by: { $0.calories < $1.calories })
Read more about structures in the Swift Programming Language book