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function quickSort(arr: number[]): number[] {
  if (arr.length <= 1) return arr;
  
  const pivot = arr[0];
  const left = arr.slice(1).filter(x => x <= pivot);
  const right = arr.slice(1).filter(x => x > pivot);
  
  return [...quickSort(left), pivot, ...quickSort(right)];
}
Example TypeScript Code
AI Explanation (Standard)
This is a QuickSort implementation that: 1. Uses recursion to sort an array 2. Picks first element as pivot 3. Partitions array into left (≤pivot) and right (>pivot) 4. Recursively sorts sub-arrays Key concepts: - Divide and conquer strategy - Array manipulation - Recursive function calls - Time complexity: O(n log n) average case
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// Example React component
function TodoList({ items }) {
  const [todos, setTodos] = useState(items);
  const [filter, setFilter] = useState('all');

  const filteredTodos = todos.filter(todo => {
    if (filter === 'active') return !todo.completed;
    if (filter === 'completed') return todo.completed;
    return true;
  });

  const toggleTodo = (id) => {
    setTodos(todos.map(todo =>
      todo.id === id 
        ? { ...todo, completed: !todo.completed }
        : todo
    ));
  };
}

Standard Explanation

This React component implements a TodoList with filtering capabilities:

1. State Management:
   - Uses useState to track todos and filter state
   - Maintains original items passed via props

2. Filtering Logic:
   - Implements three filter modes: all, active, completed
   - Uses array.filter() for efficient list filtering

3. Todo Toggle:
   - Implements immutable state updates
   - Uses map() to create new array with updated item

Key Patterns:
- Controlled component pattern
- Immutable state updates
- Functional programming concepts
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JavaScript/TypeScript

JavaScript/TypeScript

interface User {
  id: string;
  name: string;
  role: 'admin' | 'user';
}

const getUser = async (id: string): Promise<User> => {
  const response = await fetch(`/api/users/${id}`);
  return response.json();
};
  • React & Next.js patterns
  • Modern ES6+ features
  • Type system analysis
  • Framework-specific insights
Python

Python

from typing import Optional
from fastapi import FastAPI
from pydantic import BaseModel

class Item(BaseModel):
    name: str
    price: float
    is_offer: Optional[bool] = None

app = FastAPI()

@app.get("/items/{item_id}")
async def read_item(item_id: int):
    return {"item_id": item_id}
  • Data science patterns
  • Django & FastAPI
  • Async/await usage
  • Type hints analysis
Java

Java

@Service
public class UserService {
    private final UserRepository repository;
    
    public UserService(UserRepository repository) {
        this.repository = repository;
    }
    
    public Optional<User> findById(Long id) {
        return repository.findById(id);
    }
}
  • Spring Boot patterns
  • Enterprise patterns
  • Dependency injection
  • OOP best practices
Go

Go

type Service struct {
    repo Repository
    cache Cache
}

func (s *Service) GetUser(ctx context.Context, id string) (*User, error) {
    if user, ok := s.cache.Get(id); ok {
        return user, nil
    }
    return s.repo.FindUser(ctx, id)
}
  • Concurrency patterns
  • Error handling
  • Interface implementation
  • Performance optimization
C++

C++

template<typename T>
class SmartPtr {
    T* ptr;
public:
    SmartPtr(T* p = nullptr) : ptr(p) {}
    ~SmartPtr() { delete ptr; }
    
    T& operator*() { return *ptr; }
    T* operator->() { return ptr; }
};
  • Memory management
  • STL usage patterns
  • Template analysis
  • Performance insights
Ruby

Ruby

class User < ApplicationRecord
  has_many :posts
  validates :email, presence: true
  
  def self.find_active
    where(status: 'active')
      .includes(:posts)
      .order(created_at: :desc)
  end
end
  • Rails patterns
  • Metaprogramming
  • DSL analysis
  • Active Record usage
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function analyze(code) {
const explain = async () => {
class CodeAnalyzer {
import { analyze } from './ai'
def process_code(text):
public static void main(
async function parse() {
const result = await ai.explain(
export default function App()
router.get('/api/explain')
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