The Easiest Node.js (Global ver.)

In the AI era, you may not need to know coding, but you must know Git. The easiest and most detailed way to learn Git & GitHub

Kind Course even coding novices can follow! The ultimate course that makes working developers JavaScript experts!

This course makes the core concepts of data structures and algorithms easy to understand through visual metaphors and testing tools. You will gain practical experience by implementing everything from the basics to sorting and searching.

MySQL for non-majors! This lecture quickly skims through essential concepts with brief explanations, then allows you to learn MySQL hands-on by "playing" with examples on the site.

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It contains Node.js's must-know core principles and practical techniques before hands-on front-end/back-end development.

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Quickly learn TypeScript's syntax and usage with the easiest explanation.

OODP's 25 patterns teach various methods for object-oriented software design.

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Learn TypeScript syntax and usage quickly with the easiest explanations!

You will learn various ways to design software in an object-oriented manner through the 25 patterns of OODP.

This is the easiest JavaScript tutorial for those who are starting to code in JavaScript.

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Learn React the Easiest and Fastest Way!

It contains Node.js's must-know core principles and practical techniques before hands-on front-end/back-end development.

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With the arrival of the AI era, the skills required of developers are becoming increasingly complex. You might have thought, "I just need to be good at frontend," but when you try to create your own service or integrate AI features, you eventually hit a massive wall called the backend. However, as you try to start backend development, are you overwhelmed by how much there is to learn—from database design and authentication (Auth) to storage management and complex infrastructure setup? Now, you can lay down that heavy burden. In this course, we use Supabase, which solves all these backend functions at once. We will guide you through the fastest shortcut to becoming a full-stack developer who can "instantly" complete a backend without complex server knowledge and bring ideas to life immediately.

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

If Java has Spring and Python has Django, Node has NestJS! Learn Node's professional backend NestJS and Node's object-oriented programming and design patterns! This course is a membership subscription course, and if you purchase it once, you can take the continuously added NestJS techniques, DB, testing, etc.

‘Where and how should I store files that look like images? Should I store them in a database? Or on a server hard drive? How can I reduce server load? How can I quickly load many images without stuttering? AWS S3? CDN?! I just want to store and load images, so why are there so many elements? What role do each of these elements play, and how should they be combined?’ I will teach you all the necessary elements related to image files, from start to finish, as a full stack :)

Master JavaScript and React all at once with this course, covering everything from core concepts to unique projects. An all-in-one, 18-hour course designed for short learning and long application!

Learn React most easily and quickly with Explanation Master YALCO's rich and dense lectures!

This course is a practical, hands-on course where you will build your own 'League of Legends Match History Search Site' using React.js and Node.js, utilizing the Riot Games API. Students will naturally learn through hands-on practice, following the project step-by-step, covering everything from basic API usage, integration of frontend (React.js) and backend (Node.js, Express.js), to match history data visualization, and implementing op.gg-style UI. Rather than focusing on complex theories, this course is code-centric, allowing you to quickly experience results by 'building it yourself' through hands-on practice.

When you're doing backend development, at some point you face this dilemma. As services grow and traffic increases, there comes a moment when simple REST communication and CRUD structures feel limiting. I experienced the same problem in real-world work and went through many trials and errors between performance and structural complexity. The solution I chose in that process was NATS. Its simple configuration based on a single binary, ultra-low latency performance in microseconds, and the fact that it provides just the right amount of essential features for real work—from Pub/Sub to Queue Groups and JetStream—made it a very practical choice in actual service environments. This course is not about listing NATS features. Based on the problems I faced in real work, I explain with code and flow diagrams which situations led me to choose NATS, why, and how I designed the architecture. This is a course designed to help everyone—from those new to messaging systems, to backend developers preparing for jobs, to senior developers contemplating better architectures—understand distributed systems and grow to the next level.

In this course, I guide students step by step through the process of building a modern, responsive, and professional portfolio website using React JS, Bootstrap, RxJS, and Node.js. Based on real-world development experience, I focus on solving the most common problems students face when learning React: project structure confusion, component reusability, state management, animations, and deployment. Each concept is explained in a simple and practical way, then immediately applied to a real project so students can see how and why things work. By the end of the course, students will not only understand React concepts but will also have a fully functional portfolio website deployed online, ready to be shared with recruiters or clients.

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 article introduces the relationship between Nodejs, a server-side JavaScript language, and a database, and explains how to create web applications using Nodejs and a database.