Practical-focused! React for FE Beginners

Learn the latest Next.js with the official documentation. Understand why Next.js is needed as a problem-solving tool!

This course is designed to help anyone get started with the front-end framework, React, easily and enjoyably.

This course is a full-stack level frontend project course that focuses on implementing Notion from start to finish using Vanilla JavaScript, going beyond simple UI cloning to deeply understand the internal operating principles. You'll implement all the core features of a real note-taking app using vanilla JS, including sidebar tree, nested document creation, auto-save, routing, trash, favorites, search modal, settings modal, theme switching, Export/Import, keyboard shortcuts, responsive layout, drag resize, and more. The goal is to solidly learn browser standard behaviors (event bubbling, DOM tree, local storage, Blob, FileReader, hash routing, etc.) that you must know before frameworks like React and Vue, so you can completely understand "why it works this way" and build the skills to debug effectively.

Master React rendering principles and optimization to apply them in real-world situations and prepare for interviews!

Understanding Spring Boot + React.js Login (+Social) Service is a course designed to help you deeply understand the authentication flow between frontend and backend, by directly implementing a practical login system that includes JWT-based authentication and social login (Kakao/Google). The frontend is built on React.js, and the backend on Spring Boot, enabling you to learn step by step the practices used in real service environments, such as the Access Token + Refresh Token approach, user state management using HttpOnly Cookie and Redux, Role-based authorization, and social login integration.

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.

Web developers (especially React developers) can now truly easily launch apps. With Expo, you can launch both Android and iOS apps even faster. Let's become a developer who can quickly launch apps with Expo.

If you want to understand TypeScript properly, you should read the official documentation at least once, right? This lecture will convey only the important parts of the documentation in an easy-to-understand manner, and also teach you the content you need in practice!

Are you a front-end developer and have you ever felt disappointed because you couldn't implement a login function? Have you ever wanted to implement a function that saves and loads data using a DB, but found it burdensome to study queries? With Firebase, it's easy! Let's implement essential functions for web development, such as user authentication, data storage, and hosting, with the power of React and Firebase! (This lecture was recorded in August 22 and reflects the major update of Firebase.)

Complete a project integrating an API server built with Spring Boot (Spring Boot ver3.4.x) and React 19 (with TypeScript)! Apply frontend to your backend portfolio! This course is written for working professionals (not a beginner-level course).

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.

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

Throw away those simple services you can make with vibe coding in just 10 minutes! You can learn 'real' practical vibe coding. Let's create advanced services at the level of actual services according to planning and design with Cursor AI NCOP. No Code, Only Prompt

Let's create a Twitter-like SNS service with React & Next & Redux & Redux Saga & Express stack. Finally, we will deploy it to AWS after SEO.

We will apply it in practice by crawling sites such as Naver, Amazon, Twitter, YouTube, Facebook, Instagram, and unsplash.com.

Based on the lecture content, you will learn how to write a basic chat application and the basic structure of Electron and NodeJS.

Explore → Plan → Implement → Commit. Master the proven AI development workflow with Claude Code. Learn through 23 missions covering MCP, sub-agents, and prompt engineering, and complete 3 real-world projects.

Sass, which was put on the back burner because it was complicated and unfamiliar, is now cut to 40 minutes! Quickly review it! :)

This course is about TypeScript and React.

We will show you how to create a web application using JavaScript and Nodejs. You can use JavaScript, which runs in a web browser, to replace the role of PHP or JSP. You can implement the entire web application in one language.