JavaScript Next is TypeScript! An Introduction to TypeScript for Front-End Development

Let's quickly learn React's core design patterns through concepts and examples!

Do you want to become a web frontend developer? Take your first step with a fun JavaScript course✨

If you’ve learned HTML/CSS, it’s time to make web pages interactive with JavaScript. Build a solid foundation in JavaScript by learning programming basics such as variables, functions, arrays, conditional statements, and loops, along with controlling DOM elements, handling events, and implementing UI components like tabs and accordions—then take the next step toward frontend learning with React and other technologies.

If you’ve learned React, it’s time to apply TypeScript to a real-world project. Build a TodoList app from scratch, applying types to components and state, and gain practical React + TypeScript development skills by implementing CRUD functionality, storing data in LocalStorage, and deploying the app.

TypeScript: Core concepts, from basic to practical, all at once! Practical application through a project.

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!

This course is for JavaScript developers who want to learn TypeScript. You can learn everything up to the advanced features of TypeScript.

The Ultimate JavaScript Course! It covers execution context structures and mechanisms based on ES2025, the Event Loop, and multi-threading. It also explores the language culture embedded within JavaScript.

A three-in-one class where you can create web games and learn front-end web development skills! This class has been created to teach you how to create games using JavaScript, CSS, and HTML with your own ideas!

The ultimate full-stack course that teaches even beginners about web, server, mobile apps, and machine learning!! If you're not sure where to start with development, I highly recommend this course. It's all done with just Javascript!

We deal with ideas. You can logically organize the core and fundamentals of JavaScript. You can structure your own JavaScript experiences and thoughts. You can establish the technical logic of JavaScript. You can broaden your perspective to see the entirety of JavaScript. You can prepare for JavaScript technical interview questions.

Develop your ability to find the core of a problem and solve it with the 'Top 10 JavaScript Algorithms' that cover the most frequently asked types of problems!

This course is a practical, hands-on guide for those who want to learn how to maximize development productivity in the AI era. Beyond simply learning how to use AI, we focus on how to utilize Claude Code in a real-world development environment and how to produce "proper results." Many developers use AI but still face issues such as: ❌ Inconsistent results ❌ Poor code quality ❌ Increasing project complexity To solve these problems, this course teaches you how to utilize AI as a "development partner" rather than just a tool through: ✔ Spec-based workflows ✔ Structured command systems ✔ Sub-agent and automation strategies Furthermore, you will gain the experience of completing and deploying a full application from start to finish by integrating with real-world services such as Firebase, Figma, GitHub, and Vercel.

We will delve deep into the 'Stream Architecture,' which controls massive 10GB datasets with just 50MB of memory, to grasp the essence of physical resource management. Based on this, you will design data pipelines that directly control the Operating System (OS) and the V8 engine, evolving into a top 1% high-end engineer that AI can never replace.

This course will help you develop the basics and practical skills of JavaScript while creating your own game program.

Algorithms seem so difficult... Even students who are not good at math can finish the basics of algorithms in one go with this class! We will teach you the basic concepts needed to solve algorithms step by step, and even Codecamp's know-how on applying them to problems :)

Even today, as modern technologies like React have become widespread, jQuery remains a technology you will still encounter when operating and maintaining existing websites and in web publishing work. Rather than simply recreating flashy effects, you will learn the principles and fundamentals of how jQuery works, progressing step by step from events and animations to a variety of UI interactions. Complete your portfolio through hands-on practice and develop practical web publishing skills that you can apply in the workplace.

Create a web page that tests your development type! MBIT (My Best IT Personalities), not MBTI! You can learn the overall process of web development by creating your own 'MBIT Test Page'. (Uses Django 3.1 version.)

It’s an easy and fun click-through lesson. You can use it as a reference for the direction of your portfolio.

Hashing, salting, JWT, symmetric and asymmetric keys, and even HTTPS and TLS. The backbone of security that we use every day yet always found vague and unsettling. If we have to face the countless neglected threats and technical debt someday, let’s properly tackle them once and for all this time.