Tutorial

Python’s type hints have revolutionized how developers write robust, maintainable code. Starting with the simple from typing import List import, this tutorial takes you from basic list typing through advanced typing concepts and culminates in using Pydantic for powerful data validation and serialization. Whether you’re building APIs, handling configurations, or just want cleaner code, these tools will transform your Python workflow. Why Type Hints Matter in Modern Python Type hints, introduced in Python 3.5 via PEP 484, allow you to annotate variables, function parameters, and return types without affecting runtime behavior. Static type checkers like mypy catch errors early, IDEs provide better autocomplete, and your code becomes self-documenting. ...

Introduction Solving a Rubik’s Cube is far less about memorizing dozens of algorithms and far more about understanding how pieces move and how to control those movements. This guide gives you a mental model first—so every algorithm makes sense—and then a clear, beginner-friendly path from zero to hero. You’ll start with the simplest Layer‑by‑Layer method, learn the fewest essential algorithms to finish reliably, and see exactly how to upgrade your skills toward faster methods without feeling overwhelmed. ...

Object-Oriented Programming (OOP) in Python is a superpower when you learn to use the language’s data model and protocols to your advantage. This tutorial is a comprehensive, end-to-end guide—from the very basics of classes and objects to advanced features like descriptors, protocols, metaclasses, and performance optimizations. The goal: to make you more capable than 99% of your peers by the end. What makes Python’s OOP special isn’t just syntax—it’s the “data model” that lets your objects integrate naturally with the language (iteration, context managers, arithmetic, indexing, etc.). We’ll cover essentials, best practices, pitfalls, and real-world patterns, with concrete code examples throughout. ...

Introduction Expo Go is a cornerstone tool in the React Native ecosystem, enabling developers to build, test, and iterate on mobile apps rapidly without the overhead of compiling native code for every change. This tutorial dives deeply into how Expo Go works internally, revealing the architecture, workflows, and limitations that make it such a unique and powerful tool for mobile app development. By understanding Expo Go’s inner workings, you will better leverage its capabilities, troubleshoot issues, and know when to transition to custom development builds. ...

Nginx is one of the most popular open-source web servers in the world, widely used not only to serve static content but also as a reverse proxy, load balancer, and HTTP cache. This comprehensive tutorial will guide you step-by-step from the basics of installing Nginx to configuring advanced features, helping you become proficient in managing and optimizing it for your projects. Table of Contents Introduction to Nginx Installing Nginx Understanding Nginx Architecture Basic Configuration and Serving Static Content Configuring Reverse Proxy and Load Balancing Optimizing Nginx Performance Setting Up HTTPS with SSL/TLS Advanced Configurations and Use Cases Useful Commands for Managing Nginx Further Resources Conclusion Introduction to Nginx Nginx (pronounced “Engine-X”) is a high-performance web server designed to handle many concurrent connections efficiently. Unlike traditional web servers, it uses an event-driven, asynchronous architecture, which makes it well suited for high-traffic websites and applications. ...