Modern Frontend Architecture
Presentation Layer
React
Vue
Angular
State Management
Redux
Vuex
Context API
Services Layer
API Client
Authentication
Caching
State Management Patterns
Redux Pattern
// Action Types
const ADD_TODO = 'ADD_TODO';
// Action Creator
const addTodo = (text) => ({
type: ADD_TODO,
payload: { text }
});
// Reducer
const todoReducer = (state = [], action) => {
switch (action.type) {
case ADD_TODO:
return [...state, action.payload];
default:
return state;
}
};
// Store Usage
store.dispatch(addTodo('Learn Redux'));Context API Pattern
// Create Context
const TodoContext = React.createContext();
// Provider Component
const TodoProvider = ({ children }) => {
const [todos, setTodos] = useState([]);
const addTodo = (text) => {
setTodos([...todos, { text }]);
};
return (
{children}
);
};Performance Optimization
Caching Strategies
// Redis Caching Example
const getUser = async (userId) => {
// Try cache first
const cachedUser = await redis.get(`user:${userId}`);
if (cachedUser) return JSON.parse(cachedUser);
// Database query if cache miss
const user = await db.users.findById(userId);
await redis.set(`user:${userId}`, JSON.stringify(user));
return user;
};Database Optimization
- Index optimization
- Query performance tuning
- Connection pooling
- Sharding strategies
Component Architecture
Atomic Components
Buttons
Inputs
Icons
Molecular Components
Forms
Cards
Navigation
Organisms
Headers
Dashboards
Features
Best Practices & Patterns
Code Organization
src/
├── components/
│ ├── atoms/
│ ├── molecules/
│ └── organisms/
├── hooks/
├── services/
├── store/
└── utils/State Updates
- Immutable updates
- Single source of truth
- Unidirectional data flow
Performance Impact Calculator
