luthviar

import SwiftUI
import StoreKit

struct ContentView: View {
    @State private var counter: Int = 0

    var body: some View {
        VStack(spacing: 20) {
            Text("Hello, World!")
                .font(.largeTitle)

luthviar

//
//  ContentView19.swift
//  Coba14July2025
//
//  Created by Luthfi Abdurrahim on 21/08/25.
//

import SwiftUI

// MARK: - Models

luthviar

//
//  ContentView16.swift
//  Coba14July2025
//
//  Created by Luthfi Abdurrahim on 14/08/25.
//

import SwiftUI

struct DiscoverProductsCard: View {

luthviar

import SwiftUI

// MARK: - Reusable PIN Input Overlay View
struct PINInputOverlay: View {
    @State private var enteredPIN = ""
    @FocusState private var isTextFieldFocused: Bool
    @Binding var isPresented: Bool
    
    let title: String
    let onPINSubmitted: (String) -> Void

luthviar

// MARK: DON'T FORGET TO ADD in Info.plist:
// <key>NSFaceIDUsageDescription</key>
// <string>Kami membutuhkan akses Face ID untuk otentikasi biometrik.</string>

import SwiftUI
import LocalAuthentication

struct ContentView: View {
    @StateObject private var viewModel = BiometricAuthViewModel()
    

luthviar

If you want to become good at system design (I'm not joking), learn these case studies:

1 How Uber Finds Nearby Drivers at 1 Million Requests per Second ↳ https://lnkd.in/eeqH9Hjh

2 How Amazon S3 Achieves 99.999999999% Durability ↳ https://lnkd.in/eutGiK35

3 How Stripe Prevents Double Payment Using Idempotency ↳ https://lnkd.in/erMkqwq4

luthviar

import SwiftUI

enum Route: Hashable {
    case push(PushDestination)
    case modal(ModalDestination)
    case sheet(SheetDestination)
}

enum PushDestination: Hashable {
    case detail

luthviar

import SwiftUI

struct GameBoard: Equatable {
    var board: [[Int]]
    var score: Int
    
    init() {
        board = Array(repeating: Array(repeating: 0, count: 4), count: 4)
        score = 0
        addNewTile()

luthviar

package main

import (
	"bufio"
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

luthviar

<?php

define('TELEGRAM_BOT_API_KEY', 'put your api key here');
define('TELEGRAM_CHAT_ID', 'put your chat id here'); // for sending messages to groups use number of chat_id with minus '-' before, example -1238735917

define('TELEGRAM_THREAD_ID', 'your id number here'); // for topics a group, like a sub group

if($_SERVER['REQUEST_METHOD'] == 'POST') {
    $payload = json_decode($_POST['payload']);
    $type_event = $_SERVER['HTTP_X_GITHUB_EVENT'];