dterekhov

import Foundation
import Combine

let fileNames = ["quote1", "quote2", "quote3"]

class QuoteFetcher: ObservableObject {
  struct Quote: Codable { let quoteText: String }
  @Published var quotes: [Quote] = []
  var subscriptions = Set<AnyCancellable>()
  

dterekhov

/// Universal escape hatch.
///
/// [Original source](https://stackoverflow.com/a/78894560/4370543)
struct UncheckedSendable<T>: @unchecked Sendable {
	let unwrap: T
	init(_ value: T) { unwrap = value}
}

// A sample of usage with `SendBirdCalls` iOS SDK. Where it was impossible to have async version (was a crash).

dterekhov

@usableFromInline static func generateMockedSid() -> MockedIdentity {
    let sidString = UUID().uuidString
    let json = #"{"stringValue":"\#(sidString)"}"#
    let jsonData = Data(json.utf8)
    // swiftlint:disable:next force_try
    return try! JSONDecoder().decode(MockedIdentity.self, from: jsonData)
  }

dterekhov

private extension Collection {
  subscript(safe index: Index) -> Element? {
    indices.contains(index) ? self[index] : nil
  }
}

dterekhov

Commit Folder Naming Guide

---

Folder When to use

---

feature New user-facing features and capabilities

fix Bug fixes, technical corrections, error handling improvements

dterekhov

// ✅ Should be written on the same line (short, lightweight, commonly used)

/// These annotations are short and typically used with a single variable or function. 
/// They don’t add much complexity and keep the code concise.

@State private var isLoading = false
@Binding var isPresented: Bool
@ObservedObject var viewModel: MyViewModel
@Environment(\.dismiss) var dismiss
@ViewBuilder var body: some View

dterekhov

import SwiftUI

struct CommentEditor: View {
  @Binding var commentText: AttributedString
  
  var body: some View {
    TextEditor(text: $commentText)
  }
}

dterekhov

import SwiftUI

/// [Original source](https://www.youtube.com/shorts/EDd6Hr_F99o)
struct ContentView: View {
  @State private var count = 1
  
  var body: some View {
    VStack(spacing: 10) {
      Text("^[\(count) Person](inflect: true)")
        .font(.title)

dterekhov

// Demonstrates filtering and unwrapping optionals in a sequence with `for case let`.
// Equivalent to `compactMap`, but shows pattern matching directly in the loop.

let strings: [String?] = ["pizza", nil, "cola"]

for case let string? in strings {
  print(string) // pizza, cola
}

dterekhov

// Demonstrates how to use loop labels to exit from nested loops.
// Useful when you need to break out of multiple levels of iteration at once.

let groups: [[String]] = [
  ["apple", "banana", "pear"],
  ["grape", "the one", "melon"],
  ["cherry", "plum", "mango"]
]

outer: for group in groups {