First Steps in JavaScript for Web Frontend

If you’ve learned JavaScript, take your skills to the next level with TypeScript. Build a solid foundation in the TypeScript essentials needed for modern frontend development with React, Next.js, and more through hands-on practice covering basic types and type inference, interfaces, function types, generics, utility types, and more.

We introduce the main concepts, grammar, and utilization methods of JavaScript, the programming language that runs websites. This is an introductory JavaScript course that even those who are just starting out with HTML/CSS can easily understand.

This is an advanced frontend course designed for students and professionals with at least one year of web development experience. It is best suited for those with 2–3 years of industry experience who are facing a plateau in their skills or wish to learn about product architectures required by large-scale enterprises.

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.

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!

You no longer need to study JavaScript and ES6 separately. This course is designed to learn the JavaScript programming language along with the latest ES6 grammar.

If you use JS but find it difficult to explain why it works, this course provides the answer. From execution context, closures, and the event loop to Promise concurrency, prototypes, Virtual DOM, memory leaks, and bundle optimization—you won't just read about 18 chapters of advanced JS concepts; you'll learn by seeing them happen right before your eyes with a simulator. Code-based quizzes are provided for every chapter, and you can own it for life for the price of a single chicken dinner.

Are you looking to get started with JavaScript? Then choose my course.

Study the Elm programming language guide to building front-end web apps with pure functional programming in just 3 hours.

A full-stack series course aimed at beginners, based on real-world experience developing actual web services, with the goal of building web and app services to a level suitable for actual commercialization. As Part 2 of this series, this course thoroughly covers the latest HTML5, CSS3, and Vanilla JavaScript (Javascript) + ES6, including responsiveness and compatibility, among the many available frontend technologies.

You can learn HTML and CSS quickly by directly cloning and coding the best shopping mall designs posted on Cafe 24. The course is structured so that you can learn the basic theories of HTML + CSS and complete the shopping mall design through direct cloning and apply what you learned in the theory, and solidify the framework of HTML and CSS.

For over 15 years, Young Codi Kim, a star coding instructor, has been dedicated to coding education for elementary school students, high school students in IT software departments, university students in computer science, and job seekers without a major in the field. Now, you can experience Kim's easy and fun coding lectures not only offline but also online. With Young Codi Kim, who has trained over 500 front-end, back-end, full-stack, and web developers, your dream of becoming a developer will soon become a reality!

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.)

Practical Web UI Development Using HTML & CSS-Based AI

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!

Apps play an important role in our daily lives. However, the process of developing and maintaining native apps is long and complex, and can be quite costly. This course introduces Progressive Web Apps (PWA), an alternative that has been gaining attention as of September 2024. PWA combines the advantages of web technology and native apps, enabling faster and more efficient app development and maintenance. Through hands-on practice, you'll learn the concepts, advantages, and implementation methods of PWA step by step, and develop the skills to apply them directly in real-world scenarios.

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

Experience the Jeju-based bootcamp online! Quickly create your own service! :)

This is a specialized practical exam lecture optimized for the Web Design & Development Craftsman (formerly Web Design Craftsman) practical exam, strictly adhering to the exam standards effective from January 1, 2025, to December 31, 2027. Coding Works' Web Design & Development Craftsman practical exam lectures, covering HTML+CSS+JQUERY publishing, are different. It includes fully produced instructional videos for all exam types (Types A, B, C, D, E, and F) for the 2026 Web Design & Development Craftsman exam.

We have prepared this for those who want to achieve optimal results by utilizing AI, which is essential in the AI era. In just 2 hours, you can properly learn how to utilize AI through coding.