(2025 Latest Update) React: The Final Step to Becoming a Frontend Developer

In this course, you will create your own React YouTube video site using the React framework and YouTube API. You will understand the basic concepts of React, learn how to structure components, and manage state. You will also learn how to use the YouTube Data API to retrieve external data, and understand how to process API responses to provide meaningful information to users. The goal is to create and utilize your own YouTube site.

This course teaches you the latest Next.js v15 App Router while building a practical, Notion-based developer blog together. You’ll also gain various insights, including how to use Cursor AI.

There are no special React techniques that you can only learn by working in the field. The basics are enough. I will explain based on the official React documentation.

Have you ever had these concerns? I’ve learned React, but I don’t know what to actually build. I want to create a portfolio, but I can’t think of anything besides a Todo app. Map APIs or Public APIs seem difficult, so I haven’t even tried them. I’ve never deployed anything, so it always ends as a “local project.” The code is getting more complex, and I don’t know how to design the architecture. 🎯 Problems this course solves This course isn’t just about showing you how to display a map. ✔ How to connect Public APIs to a real service ✔ How to stably design Map SDKs within a React structure ✔ Marker optimization and reusable InfoWindow structures ✔ State management design using Context ✔ Practical application of Tailwind + SCSS ✔ GitHub organization and Vercel deployment I will teach you how to design with a real service structure, not just "implementing features." 💡 This is not a "just follow along" course Why we use useRef Why you shouldn't create new markers every time Why you need to separate state Why environment variables must be managed separately in production There is a reason for every choice. This course explains those "reasons." 🚀 After taking this course, you will: Complete one map-based portfolio project Gain experience integrating Public APIs Understand the structure of attaching external SDKs to React Gain experience in designing professional-grade project structures Have deployment experience And you’ll be able to say this in an interview: “I personally designed and deployed a map service based on Public APIs.” This one sentence makes a huge difference. 👩‍💻 Recommended for: Those who know basic React syntax but lack project experience Those who want to build a portfolio for employment Those who wanted to try a Map/Public API project Those who want to learn design patterns close to real-world practice 🔥 The Goal of this Course This course is not about “how to make a map,” but about learning the “mindset of designing a service.”

Practice REST API and GraphQL while creating a simple SNS service based on React. We introduce how to easily and simply create a backend environment for frontend development.

In this course, you will be able to create a Reddit website from scratch, step by step.

This lecture explains how to access, modify, delete, add, and search SQL data in Xamarin. You can also learn how to utilize the API by creating a WEB API.

This is mission content for a development project. We provide a PRD planning document, Figma designs, and API endpoints so that you can practice by implementing a timer app called DevTime yourself. Make the knowledge you have learned completely your own by implementing a project at a level similar to an actual service 🚀

If you're a React developer, you've probably wrestled with useMemo and useCallback at least once, wondering "Do I really have to do this manually?" Finally, the React Compiler has arrived to solve that dilemma. However, whenever new technology emerges, reading through extensive official documentation from start to finish can be overwhelming. That's why I've carefully analyzed the React Compiler official documentation and prepared a course that extracts only the essentials for easy understanding. This course covers: - Why: Why the React Compiler was created and how it differs from existing approaches - How: Installation and configuration methods to apply directly to your projects - Troubleshooting: Key precautions emphasized in the official documentation and error resolution tips Now break free from the pain of manual memoization and focus solely on business logic. This course will upgrade your React development experience to the next level.

In the era of agents, true skill comes from 'control.' You will perfectly master the operating principles of agents by building the core architectures of Claude Code—Agent, Tool, MCP, Skill, and AgentTeam—from scratch.

Complete everything from design to TDD and CI with Claude Code. Taking a single feature from one line of spec all the way to main merge.

Building your own emotional diary service with Spring AI + React It's time for our 4th project with Neo + Essential!

A portfolio-focused course on deploying a React frontend and Spring Boot backend directly to the AWS cloud! This course is helpful for those who want to quickly deploy frontend and backend projects for their portfolio. You will gain the necessary knowledge for deployment through short-term, step-by-step practice, covering everything from server configuration to Docker, domain connection, Nginx, and HTTPS application!

This course will help you develop mobile apps that can be serviced on Android and iOS using web development.

In this course, you will learn how to create a chatbot using the API provided by Google.

A Complete End-to-End Developer Journey — Build Lightning-Fast APIs, Modern Frontend Interfaces, Real Projects, Authentication Systems, Dashboards & Full Deployments Using FastAPI, React, and Vibe Coding Techniques.

The goal is to acquire basic knowledge of React Native for mobile app front-end development. This course is designed to enable non-experts to easily develop native mobile apps by utilizing languages/APIs with low entry barriers.

"Why did the AI write this code?" or "Why can't it remember what I just said?" The frustration you encounter when using AI tools like Claude Code stems from not knowing how the tool actually works. This course flings open that black box. Over 25 lessons, we will build our own Coding Agent from scratch that functions exactly like real-world professional tools—giving the LLM 'eyes' to see files (Read), 'hands' to fix code (Edit), and 'feet' to execute commands (Bash). This isn't just about learning how to use a library. You will gain hands-on experience by implementing code to understand how AI perceives project structures, why it loses its memory during long conversations, and how to solve those issues technically (Sliding Window, Summary). Through this process, you will evolve from being a mere 'user' of AI tools to an 'AI provider' who understands the underlying principles and can customize and evaluate tools to fit your specific needs.

We have entered an era where it has become incredibly easy for web developers (especially React developers) to launch apps. With Expo, you can release both Android and iOS apps even faster. Let's become developers who can quickly launch apps through Expo.

This course is about TypeScript and React.