While containers are quite lightweight and provide various benefits, it can be challenging to decide how best to deploy them. There are a number of ways to deploy and run Docker containers. But some are best for orchestrating and managing containers, and may not suit a simple use case of running just one container. In […]
Monthly Archives: December 2025
Hi, I’m Ilyas. I’m a web developer, and this is my story about how I struggled with interviews for a long time and what finally helped me break through. I’ll talk about what failing basic interview questions taught me about recall, preparation, and smarter job searching. If you’re a junior, mid-level, or self-taught developer who […]
2025 has been an amazing year for the global freeCodeCamp community. And we’re thrilled to cap it off with the launch of several Christmas Gifts for you: freeCodeCamp’s Python certification freeCodeCamp’s JavaScript certification (Version 10) freeCodeCamp’s Responsive Web Design Certification (Version 10) freeCodeCamp’s Relational Database + SQL Certification Our A2 level English for Developers Certification […]
In standard app development, the User Interface (UI) is static. You write code for a button, compile it, and it remains a button forever. GenUI flips this model on its head. With GenUI, Google’s Generative UI SDK, your application’s interface becomes dynamic. You don’t hard-code widget trees. Instead, you provide an AI agent, such as […]
Vercel AI SDK is a TypeScript-first toolkit for building AI features. It streamlines text generation, embeddings, and structured outputs. We just posted a course on the freeCodeCamp.org YouTube channel that will teach you to use the Vercel AI SDK to create and ship a customer support agent that makes autonomous decisions to either answer questions […]
Today Quincy Larson interviews Santosh Yadav. The son of a textile worker, he grew up inner-city Mumbai and studied hard to get into university. From there he’s worked as a software engineer for 16 years. Along the way, he’s picked up every distinction imaginable including Google Developer Expert, GitHub Star, and Microsoft MVP. Santosh shares […]
Recently, I wanted to understand how smart home devices actually work. When you scan a QR code and a light appears in your Home app, what’s really happening? When you tap “on”, what bytes travel across your network? The best way I know to understand something is to build it, so I created a virtual […]
Back in 2023, when I started using ChatGPT, it was just another chatbot that I could ask complex questions to and it would identify errors in my code snippets. Everything was fine. The application had no memory of previous states or what was said the day before. Then in 2024, everything started to change. We […]
Databases are one of the most important parts of a software system. They allow us to store huge amounts of data in an organized way and retrieve it efficiently when we need it. In the early days, when the volume of data was relatively small, engineers prioritized fast data retrieval and stored data in B-tree […]
Learn how to build a complete 2D Pixel Art Tower Defense game in Unity from scratch! We just posted a step-by-step tutorial on the freeCodeCamp.org YouTube channel that will guide you from a blank project to a fully playable game with a main menu, multiple tower types, enemy waves, and three unique levels. Frank from […]