All About TypeScript

Build a solid foundation for your first start with Redis A to Z! Everything about Redis, explained so easily and fun that even a high school student can understand it perfectly.

All-in-one course: Master Node.js by building a solid foundation step-by-step from the basics 👍

In this course, you will learn about TypeScript.

Take advantage of TypeScript's features!

This tutorial will teach you how to create a simple chat app using TypeScript and Electron.

I recommend this to those who want to learn how to easily create and distribute Android apps, Windows apps, and iOS apps. We will teach you the basics of TypeScript rather than JavaScript and Angular!

This is an introductory course where you will learn the core syntax of TypeScript to improve type safety and code readability through hands-on practice. You will learn everything from project environment setup to interfaces, generics, and utility types using real-world code examples.

This course is designed for developers who already have experience with programming languages (such as Java, Python, Swift, Kotlin, etc.) to quickly master JavaScript in just one hour. In an era of coding with AI, human developers must still supervise AI-generated code. This course is intended to help you rapidly build the essential knowledge required for that supervision.

You will learn about what a node is, the latest JavaScript grammar, the node API, npm, the module system, databases, testing, and more. You will create a project using five practical examples. You will also deploy a service to the cloud and convert a node project to TypeScript.

NestJS, the fastest way to help you get started with backend development! Through various hands-on projects, you will quickly learn the backend framework NestJS, TypeORM, and the essential theoretical knowledge that every server developer must know.

This is the practical application section of "Introduction to TypeScript - From Basics to Practice". If you haven't taken the introductory course, please start with the introductory section first 😄

Prisma ORM is a highly productive tool, but in practice, you must consider more than just simple CRUD—including schema design, relation structures, state value design, transactions, migration management, and query performance. This course is not an introductory manual that simply lists Prisma syntax; it is a practical guide summarizing how NestJS backend developers should design and operate Prisma in real-world scenarios. It is specifically designed for those who have learned the basics by reading the official documentation but feel uncertain about the criteria for dividing models, when to use transactions, or how to apply migrations safely in actual projects. Through this course, students will go beyond using Prisma as just a "convenient ORM" and learn how to design schemas optimized for maintenance, while establishing standards to avoid common real-world issues in advance.

We teach you the core principles of clean code through easy example code.

While LLMs are currently transforming the development environment, what truly matters is not just "writing code on your behalf" but integrating them as features into a service. This course provides a step-by-step guide to implementing a lightweight yet polished Tarot reading service using Next.js and the OpenAI API. In the first stage, we will build an MVP that works without a backend, connecting the user input flow (questions/threads/card selection) to result generation. In subsequent stages, we will expand the functionality by building a backend, implementing general login and OAuth, adding community features, and creating a reading dashboard. Finally, we will conclude by deploying to AWS and integrating Google AdSense to complete a service ready for actual operation. Additionally, we will cover understanding pricing structures and cost optimization strategies to ensure that LLM API usage costs do not become a burden.

Let's learn Typescript as a preliminary step to learning Ionic2 Framework, one of the frameworks for developing hybrid apps.

🔥 This is a practical full-stack course where you implement the entire journey a student experiences, from browsing lectures to payment and deployment. You will build everything yourself—including lecture search, detail pages, enrollment, video playback, reviews and Q&A, shopping carts, actual payments, "continue watching" features, and Docker + AWS deployment—to master user flows and architectural design close to real-world services and complete a high-level full-stack experience.

🔥 This is a practical full-stack course where you will implement the knowledge-sharer features from scratch, from course registration to video uploading. Using Next.js 15 and NestJS, you will follow the actual Inflearn workflow—creating courses, organizing curriculums, uploading thumbnails and videos, and writing detailed descriptions—while gaining hands-on experience in Prisma modeling, JWT authentication, S3 + CloudFront uploading, and Swagger API design.

This is a course where you will build a map service from scratch using the MERN stack (feat. TypeScript). Let's build it step-by-step while following the official API documentation.