Bite-sized Next.js

The 3rd installment of the "One Bite" series! This is the world's most friendly and detailed Next.js course. We will explore not only the App Router but also the Page Router through hands-on projects.

(5.0) 562 reviews

5,396 learners

Level Basic

Course period Unlimited

React
React
TypeScript
TypeScript
Next.js
Next.js
React
React
TypeScript
TypeScript
Next.js
Next.js

Reviews from Early Learners

Reviews from Early Learners

5.0

5.0

Next

100% enrolled

I was able to learn a wide range of concepts from basic to advanced in Next.js. In particular, I was able to easily understand complex topics that might be difficult to understand through visual materials and animations. The lecture content is well organized in stages, so even beginners can follow along without difficulty, and I think even intermediate and above developers can learn a lot from this lecture. In addition, not only did I learn the grammar, but I also learned the theoretical aspects of Next.js's operation, internal mechanisms, SSR, SSG, ISR, and various methods in depth, as well as methods that can be applied to actual projects, which was very helpful. Thanks to the instructor's careful preparation and effort, learning Next.js was really fun and rewarding. Thank you very much!

5.0

itjustbong

74% enrolled

I am leaving a review because I was very satisfied with the lecture! I am a front-end developer, but I have been stuck on the Page Router stack for a long time. I have tried App Router, but I kept using Page Router because of my familiarity with it... But I thought I would try to follow the latest trends by taking this lecture, and the quality was much higher than I expected. One of the reasons I kept going back to Page Router was that I didn't understand App Router properly. By taking this lecture, I was able to understand how App Router works, and I gained confidence in App Router while working on a small project. If I had any wishes for the next lecture, it would be nice to have a practical (or advanced) version that includes all the settings because sometimes when you set up App Router, the design system or other libraries don't work properly, making it difficult to set up! Thank you!

5.0

dla1434

92% enrolled

I don't usually leave course reviews...but I'm so satisfied with this lecture that I'm leaving one. First of all, I've watched several Next lectures, but most of the time, they just tell you how to use it and move on when it's hard to explain in the lectures, so I always wondered why I should use it and what's different. Even when I looked at the official documentation, there were many ambiguous parts, so there were parts that I didn't understand. But after watching this lecture, I understood most of it. First of all, the explanations and materials are easy to understand, and after explaining the theory, they showed it again through practice, so this lecture was the best lecture I've seen by Jeong-Hwan. The previous lectures were good, but I think it's the result of a lot of thought and feedback. I'm really looking forward to the next lecture~~ I think it would be good if Next produced a practical lecture.

What you will gain after the course

  • Explore the latest Next.js concepts.

  • We will explore most concepts, from the Page Router to the App Router.

  • We explore various concepts such as server components, page routing, layout configuration, data fetching, streaming, and deployment.

로드맵안내_넥스트

Click the image to go to the roadmap.
> Roadmap link: https://link.onebitefe.com/r/68zgsv

Series Lecture Links
> React in One Bite:https://inf.run/v3XAj
TypeScript in One Bite: https://inf.run/FpLm4
Next.js in One Bite: https://inf.run/v3XAj

Thanks to your great support, this course has been published as a book. I sincerely thank you. 🙇‍♂

  • Bite-Sized Next.js | Official Trailer

Bite-sized Next.js: Still Effective in the AI Era

15 hours of content,
covering everything from Page Router to App Router

💡 What is Page Router?

The router used prior to Next.js version 13
Provides intuitive and stable features

💡 What is App Router?

The latest router released after Next.js version 13
Provides the latest features such as streaming and server actions

The App Router, newly introduced in Next.js version 13, was created to compensate for the shortcomings of the Page Router.
Even in an era where AI writes code for you, it is difficult to properly handle the mechanisms of the App Router without an understanding of the Page Router.

Therefore, this course will proceed in the order of quickly reviewing Page Router (5 hours) and then diving deep into App Router (10 hours). Through this, you will gain a deep understanding of the limitations of the existing Page Router and how App Router overcomes these limitations.

⚠ However, please do not misunderstand; this course will focus on the App Router.

No more static visual materials
Explore Next.js with intuitive animations

Next.js has many features with complex mechanisms.
As a result, it is difficult to explain them sufficiently with static visual materials alone.
This course provides intuitive animations like the ones below.

Visual materials related to React Server Components

Visual materials related to Client Router Cache

As close to real-world scenarios as possible 🚧
Providing a custom-built backend server for hands-on practice

To examine Next.js's various caching features in a more practical environment, we provide a
self-developed backend server.

Backend Server API Documentation

Course Curriculum

Section 1. Introducing Next.js

Before diving into the full-scale learning, we will explore what the technology called Next.js is
and why it is receiving so much attention today.

Section 1. Introducing Next.js.

Section 1. Introducing Next.js.

Section 2. Page Router Core Summary

(Optional Course) We will take a quick look at the Page Router, which has been provided since the early release of Next.js, along with a project.
At the same time, we will also explore the inconveniences and technical limitations associated with the Page Router.

Section 2. Introducing Page Router

Section 2. Introducing the Page Router

Section 3. Getting Started with App Router

The center of attention! We will take a look at the App Router. We will explore what the App Router is, what technical differences it has, and also look into its basic usage.

Section 3. Getting Started with App Router

Section 3. Getting Started with App Router

Section 4. Data Fetching

We will explore data fetching using Server Components.
At the same time, we will also look into various caching mechanisms provided by Next.js (Data Cache, Request Memoization).

Section 4. Data Fetching

Section 4. Data Fetching

Section 5. Page Caching

We will take a detailed look at Full Route Cache and Client Router Cache, which are the page caching mechanisms in the App Router version.
At the same time, we will also explore Route Segment Options, which allow you to forcibly set a page's caching options.

Section 5. Page Caching

Section 5. Page Caching

Section 6. Streaming & Error Handling

We will explore Streaming, which helps render parts of a page as soon as they are ready.
We will look at both the method using the Loading file and the method using Suspense.

We will also look at error handling and page recovery methods using the Error file.

Section 6. Streaming and Error Handling

Section 6. Streaming and Error Handling

Section 7. Server Actions

We will take a look at Server Actions, which received an enthusiastic response upon their release.
We will also explore how to add or delete data using Server Actions and how to handle loading and error states.

Section 7. Server Actions

Section 7. Server Actions

Section 8. Advanced Routing Patterns (Parallel, Intercepting)

We will explore the newly provided Parallel Routes & Intercepting Routes in the App Router.
Using these, we will implement a feature that displays specific pages as modals to avoid interrupting the user's navigation.

Section 8. Advanced Routing Patterns

Section 8. Advanced Routing Patterns

Section 9. Optimization and Deployment

We will explore optimization methods for images, metadata, pages, and regions.
We will then proceed to deploy the optimized project to Vercel and perform further performance improvements.

Section 9. Optimization and Deployment

Section 9. Optimization and Deployment

The 5 Principles of the One-Bite Series

⚖ Principle 1. Intuitive and Rich Visuals

Just as the same food feels more delicious when it looks good,
I believe that even for the same conceptual explanation, more intuitive and attractive visual materials will make it easier to understand.

Therefore, I have made constant efforts to create intuitive visual materials, including animations.

⚖ Principle 2. Kindness

I did not gloss over new terms or concepts with vague explanations, nor did I jump to the conclusion that you would already know them. I made every effort to ensure you wouldn't have to search on Google separately while taking the course.

⚖ Principle 3. Probability

To keep students engaged, I created these lectures with a constant focus on logical flow—always considering whether new content connects to what came before and ensuring you don't feel any sudden interruptions in the progression.

⚖ Principle 4. Good Vocalization and Diction

Since you will be listening to my voice for a long time, I am always striving for good vocalization and diction.
To this end, I have produced the lectures so that you can understand everything even when played at 2x speed.

Take a listen! 2x speed playback link

⚖ Principle 5. Communication

Gather in a student-only community to share knowledge and news while growing together.

Frequently Asked Questions Q&A 💬

Q. Who is the target audience for this course?

This course is optimized for those with basic knowledge of React.js and TypeScript.
However, for TypeScript, since I will be providing additional explanations and supplementary learning materials throughout the course,
you will be able to follow along without much difficulty, except for the parts where types are written.

Q. I only want to learn the App Router; do I really need to listen to the Page Router section?

If you are an expert in Page Router, you may skip Section 2 and start learning directly from Section 3.
However, accurate metacognition is required regarding whether you have a good understanding of the limitations and characteristics of Page Router.

Portfolio and Personal Videos

INFCON2023 - Why is TypeScript like that?

(Book) Introduction video for "React One Bite at a Time"

Recommended for
these people

Who is this course right for?

  • Students of the "One Bite" series

  • Beginners starting with Next.js for the first time

  • Those who want to learn with the latest version of Next.js

  • Those who are looking for a kind and detailed lecture

Need to know before starting?

  • React.js (Basic)

  • TypeScript (Basic)

Hello
This is winterlood

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Answers

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Courses

Shall we take a bite-sized piece of Web Front-end?!

Hello 🙇‍♂

I am someone who believes there is a way to explain anything easily and enjoyably, and

I am someone who wants to create the warmest developer community in the world.

 

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Curriculum

All

66 lectures ∙ (15hr 33min)

Course Materials:

Lecture resources
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Reviews

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562 reviews

5.0

562 reviews

  • dla14347593님의 프로필 이미지
    dla14347593

    Reviews 4

    Average Rating 4.3

    5

    92% enrolled

    I don't usually leave course reviews...but I'm so satisfied with this lecture that I'm leaving one. First of all, I've watched several Next lectures, but most of the time, they just tell you how to use it and move on when it's hard to explain in the lectures, so I always wondered why I should use it and what's different. Even when I looked at the official documentation, there were many ambiguous parts, so there were parts that I didn't understand. But after watching this lecture, I understood most of it. First of all, the explanations and materials are easy to understand, and after explaining the theory, they showed it again through practice, so this lecture was the best lecture I've seen by Jeong-Hwan. The previous lectures were good, but I think it's the result of a lot of thought and feedback. I'm really looking forward to the next lecture~~ I think it would be good if Next produced a practical lecture.

    • rhs199813739님의 프로필 이미지
      rhs199813739

      Reviews 9

      Average Rating 5.0

      5

      8% enrolled

      Front-end lecture === Lee Jeong-hwan

      • I agree!!

    • seungwoo님의 프로필 이미지
      seungwoo

      Reviews 7

      Average Rating 5.0

      5

      74% enrolled

      I am leaving a review because I was very satisfied with the lecture! I am a front-end developer, but I have been stuck on the Page Router stack for a long time. I have tried App Router, but I kept using Page Router because of my familiarity with it... But I thought I would try to follow the latest trends by taking this lecture, and the quality was much higher than I expected. One of the reasons I kept going back to Page Router was that I didn't understand App Router properly. By taking this lecture, I was able to understand how App Router works, and I gained confidence in App Router while working on a small project. If I had any wishes for the next lecture, it would be nice to have a practical (or advanced) version that includes all the settings because sometimes when you set up App Router, the design system or other libraries don't work properly, making it difficult to set up! Thank you!

      • justfix0109464님의 프로필 이미지
        justfix0109464

        Reviews 15

        Average Rating 5.0

        5

        25% enrolled

        Next.js lecture? Lee Jung-hwan. React.js lecture? Lee Jung-hwan. TypeScript lecture? Lee Jung-hwan. It's official. Memorize it. It'll hit your head with visual materials and dictionaries. Still not paying? It's hard to read. If there are concepts that are difficult or confusing to answer the questions below, please pay. It'll help. 1. Please explain the differences between React and Next.js from the perspective of TTV and TTI. 2. Please explain Next.js pre-rendering. 3. Please explain Next.js prefetching. 4. When does Next.js hydration occur? 5. When does Next.js data fetching occur? I didn't know anything, but now I can answer. It kindly feeds you visual materials. If you forget, it'll be brought up for review and hammered into your head. I originally didn't want to leave a review like this, but I couldn't help but leave a review because it was obvious that you were trying to improve the quality of the lectures. The really scary thing is that you can get this much from the lectures, even though it's only the beginning. (Let's stop worrying and go pay. I don't think anyone would do it, right?)

        • bibipapa님의 프로필 이미지
          bibipapa

          Reviews 4

          Average Rating 5.0

          5

          100% enrolled

          Don't bother digging, just watch this lecture

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