I'm working on a workout app which has an array within an array and takes user input to populate each array. In the first array, I can add an item to plans using the addPlan function. However, I cannot seem to figure out how to add items to the next level in the addExercise function. final class ViewModel: ObservableObject { @Published var plans: [Plan] = [] func addPlan(_ item: String) { let plan = Plan(name: item, exercise: []) plans.insert(plan, at: 0) } func addExercise() { } } Essentially, Plan holds an array of Exercise. Here is the model for Plan struct Plan: Identifiable { let id = UUID() let name: String var exercise: [Exercise] static let samplePlans = Plan(name: "Chest", exercise: [Exercise(name: "Bench"), Exercise(name: "Incline Bench")]) } These two functions should behave the same but just appending the items into different arrays. The end result would be: Plan 1: [Exercise1, Exercise2, Exercise3] Plan 2: [Exercise4, Exercise5, Exercise6] etc. Project files: LINK

I'm working on a calculator app but I'm having trouble displaying the results of a function. When I press a button in ButtonView, a function runs to calculate the result but that result does not display in CalculationCircleView. Main View: struct ScoreCalculatorView: View { @StateObject private var viewModel = ViewModel() var body: some View { VStack { Spacer() HStack { CalculationCircleView(calculation: viewModel.grossScore, label: "Score") Spacer() CalculationCircleView(calculation: viewModel.plusMinus, label: "+/-") } .padding(.horizontal, 30) Spacer() LazyVGrid(columns: viewModel.columns, spacing: 20) { ForEach(0..<4, id: \.self) { index in ZStack { DataCellsView(labels: viewModel.scoreLabels[index]) TextField("\(viewModel.scoreLabels[index])", text: $viewModel.scoreData[index]) .font(.largeTitle) .fontWeight(.light) .frame(maxWidth: 80) .multilineTextAlignment(.center) .keyboardType(.numberPad) } } } .frame(width: 250) Spacer() ButtonView(data: viewModel.scoreData) .padding(.bottom, 20) } } } CalculationCircleView: struct CalculationCircleView: View { @StateObject private var viewModel = ViewModel() @State var result = "" let calculation: Double let label: String var body: some View { VStack { ZStack { Circle() .stroke(lineWidth: 8) .foregroundColor(.green) .frame(height: 150) Text("\(viewModel.grossScore, specifier: "%.1f")") .font(.largeTitle) .fontWeight(.light) } Text(label) } } } ButtonView: struct ButtonView: View { @StateObject private var viewModel = ViewModel() let data: [String] var body: some View { Button(action: { print("***** Score before func: \(viewModel.grossScore)") viewModel.calculateGrossScore(data: data) print("***** Score after func: \(viewModel.grossScore)") // viewModel.calculatePlusMinus(data: data) // viewModel.calculateDifferential(data: data) }, label: { ZStack { RoundedRectangle(cornerRadius: 4) .frame(width: 200, height: 50) .foregroundColor(.green) Text("Calculate") .bold() .foregroundColor(.white) } }) .padding(.bottom, 20) } } I believe that the issue is the variable grossScore is being updated after CalculationCircleView has been called. Is there anyway to update a view that is higher in the view hierarchy? Note: There are some other bugs that I have not gotten to yet. Just wanted to focus on this one first. Project Files: LINK

I'm working on an exercise app and have been running into the error "Cannot assign to property: "weightArray" is a get-only property". I want to have the textfield be able to enter a different numerical value for each set (0..<4) I believe I need to use { get set } in weightArray in my model data but I can't seem to figure out exactly how to implement it. View:     @Binding var data: Exercise     var body: some View {         List {             VStack(alignment: .leading) {                 ForEach(0..<4, id: \.self) { sets in                     ZStack {                         RoundedRectangle(cornerRadius: 8)                             .fill(.opacity(0.1))                         TextField("0", text: $data.weightArray[sets])                             .multilineTextAlignment(.center)                             .keyboardType(.decimalPad)                     }                     .frame(width: 65, height: 30)                     Text("lbs")                     Divider()                 }             }         }     } } Model: struct Exercise: Identifiable, Codable {         let id: UUID         var weight: [String]         var weightArray: [String] {             let array: Array<String> = Array(repeating: "0", count: numericalSets)             return array         } Any help is appreciated.

Can anyone help solve the error here? I continue to get the fatal error in the ModelData.swift file: "Couldn't parse quotes.json as Array". I have validated the JSON file on JSONLint as well. Here are the project files: LINK I am new to SwiftUI so any help is very appreciated. Model Data: import Foundation import Combine final class ModelData: ObservableObject {     @Published var quotes: [Quote] = load("quotes.json") } func load<T: Decodable>(_ filename: String) -> T {     let data: Data     guard let file = Bundle.main.url(forResource: filename, withExtension: nil)     else {         fatalError("Couldn't find \(filename) in main bundle")     }     do {         data = try Data(contentsOf: file)     } catch {         fatalError("Couldn't load \(filename) from main bundle:\n\(error)")     }     do {         let decoder = JSONDecoder()         return try decoder.decode(T.self, from: data)     } catch {         fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)")     } } Model: import SwiftUI struct Quote: Codable, Identifiable, Hashable {     var id: Int     var readDate: Date?     var quote: String     var author: String     var isFavorited: Bool          var displayAuthor: String {         "- \(author)"     }     var formattedDate: String {         readDate?.formatted(date: .numeric, time: .omitted) ?? "N/A"     }     var dayDate: String {         readDate?.formatted(.dateTime.day()) ?? "N/A"     } } JSON File: [     {         "id": 1,         "readDate": "11.12.2022",         "quote": "If you judge a fish by its ability to climb a tree then it will go its whole live beliving it's stupid.",         "author": "Albert Einstein",         "isFavorited": false     },     {         "id": 2,         "readDate": "11.13.2022",         "quote": "Do or do not. There is no try.",         "author": "Master Yoda",         "isFavorited": true     },     {         "id": 3,         "readDate": "11.14.2022",         "quote": "Learn as if you will live forever, live like you will die tomorrow.",         "author": "Mahatma Gandhi",         "isFavorited": false     },     {         "id": 4,         "readDate": "11.15.2022",         "quote": "When you change your thoughts, remember to also change your world.",         "author": "Norman Vincent Peale",         "isFavorited": false     },     {         "id": 5,         "readDate": "11.16.2022",         "quote": "Success is not final; failure if not fatal: It is the courage to continue that counts.",         "author": "Winston S. Churchill",         "isFavorited": false     },     {         "id": 6,         "readDate": "11.17.2022",         "quote": "Success is getting what you want, happiness is wanting what you get.",         "author": "W. P. Kinsella",         "isFavorited": false     },     {         "id": 7,         "readDate": "11.18.2022",         "quote": "Successs usually comes to those who are too busy looking for it.",         "author": "Henry David Thoreau",         "isFavorited": false     },     {         "id": 8,         "readDate": "11.19.2022",         "quote": "Don't let yesterday take up too much of today.",         "author": "Will Rogers",         "isFavorited": false     },     {         "id": 9,         "readDate": "11.20.2022",         "quote": "You miss 100% of the shots you don't take.",         "author": "Wayne Gretzky",         "isFavorited": true     } ]