Learn Vanilla JS: The Beginner’s Guide to Pure JavaScript

This course is designed to learn the JavaScript programming language along with the latest ES6 grammar.

Learn React the Easiest and Fastest Way!

This course is designed to learn the JavaScript programming language along with the latest ES6 grammar.

This course will teach you JavaScript through theory and practice. This course is for those who are somewhat familiar with JavaScript. Part 1 covers JavaScript classes and object-oriented programming.

This course focuses on helping beginner Javascript developers become developers who can develop Real web apps. If you take this course, you can learn the basic concepts related to Vue.js and develop Real web apps. This course is Part 1, Basics, and through Parts 2 and 3, we will implement Real web apps. It is structured so that you can learn easily even if you only know basic simple HTML, without prior knowledge such as Javascript or CSS. By the end of the course, you will definitely be able to do basic coding for Vue.js.

We will create various pattern image effects that complete the scattered image pieces into one image using JavaScript and CSS and process them to appear randomly. I think that if you apply this lesson, you will be able to create your own unique effects!

In this course, I will guide you step by step through the process of building a complete, modern, and professional portfolio website using Next.js 14, React.js, Tailwind CSS, and Nodemailer. Based on my experience helping students understand complex front-end concepts, I focus on clear explanations, real-world examples, and practical implementation. Instead of just explaining theory, we build everything together—from project setup to final deployment—so you fully understand why and how things work. You will learn the core concepts of Next.js 14, including the App Router, file colocation, private and dynamic routes, navigation, layouts, metadata, and loading states. Once the fundamentals are clear, we will build a full portfolio website with dynamic content, smooth scrolling animations, downloadable PDF files, and call-to-action buttons driven by scroll state. By the end of the course, you will deploy your website on Vercel, publish the source code on GitHub, and confidently understand the difference between React routing and Next.js routing, while knowing how to build real-world, production-ready applications. No prior experience with Next.js is required.

No matter how much you study React, Next.js, or Vue, if the code feels abstract and the structure isn't clearly understood, the root cause might be a lack of understanding of DOM. DOM is the foundation of all frontend frameworks and the entity that connects the structure and behavior of web pages. This lecture goes beyond simple selectors or manipulation methods, teaching step-by-step from the very beginning how HTML transforms into DOM objects and how to select, traverse, and manipulate this structure. It is the Part 1 introductory lecture of 'Complete DOM Mastery'. HTML tags are just structure, and JavaScript is just behavior, but DOM is the core that connects the two. If you clearly understand this connection, you'll be able to precisely grasp the true structure and flow within any framework you use.

Learn Springboot + ReactNative RestAPI Board Creation Faster Than Anyone Develop a CRUD server with Springboot and create your own board with ReactNative!!

Let's create a Minesweeper game that was basically installed on old Windows using HTML, CSS, and JS.

🔥 Build a customized platform for Hanja learning! Leverage Google Gemini AI and Firestore to directly implement your own Hanja vocabulary book, stroke order animation, and even handwriting recognition!

This is a full-stack series course aimed at developing web and app services at a commercially viable level for beginners, based on real-world experience developing web services in the field. As Part 2 of this series, this course thoroughly covers the latest HTML5, CSS3, and vanilla JavaScript + ES6, considering responsiveness and compatibility among the various frontend technologies available.

We will write server code using the JavaScript-based web framework Express.js to understand basic usage and server operation principles. We will also study that frontend essentially requires a server, and enhance our understanding by learning about the processes behind various techniques such as static serving and dynamic rendering.

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!

jQuery, a JavaScript library used by over 75% of websites worldwide! This course is structured to help you understand the principles and build a strong foundation rather than focusing on flashy effects. Learn jQuery from the basics to advanced applications to complete your own portfolio or use it immediately in the field.

A current startup CTO will share vibe coding knowledge gained through actual services and various outsourcing projects.

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.

Through this lecture, students can create a web service similar to Instagram using HTML, CSS, and JS. (Only the front-end is implemented! The back-end server construction will be filmed in a later lecture.)