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Bite-sized Next.js(v15)

The 3rd work in the One Bite series! The world's most kind and detailed Next.js (15+) course. We'll explore not only App Router but also Page Router through projects.

(5.0) 485 reviews

4,872 learners

  • winterlood
이론 실습 모두
next.js13
Next.js
React
TypeScript
kakao-tech

Reviews from Early Learners

What you will gain after the course

  • We'll explore the latest Next.js (v15 and above) concepts.

  • We'll explore most concepts from Page Router to App Router.

  • We'll explore various concepts including server components, page routing, layout configuration, data fetching, streaming, and deployment.

로드맵안내_넥스트

You can navigate to the roadmap by clicking on the image.
> Roadmap link: https://link.onebitefe.com/r/68zgsv

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

Thanks to all of your love and support, this course has also been published as a book. I sincerely thank you 🙇‍♂

  • Next.js in Bite-Sized Pieces | Official Trailer

Bite-sized Next.js(15+)

15 hours of content covering
from Page Router to App Router

💡 What is Page Router?

Router used until Next.js version 13
Provides intuitive and stable functionality

💡 What is App Router?

Next.js 13 latest router released after version 13
Provides latest features such as streaming, server actions, etc.

The App Router, which newly appeared starting from Next.js version 13, was introduced to address the shortcomings of the Page Router.
Therefore, without understanding the Page Router, it's difficult to easily comprehend the new mechanisms of the App Router.

Therefore, this course will proceed by quickly reviewing Page Router (5 hours) and then thoroughly examining App Router (10 hours). Through this approach, you will gain a deep understanding of what limitations the existing Page Router had and how App Router overcomes these limitations.

⚠ However, please don't misunderstand - this course focuses on App Router.

Stop with static visual materials ✋
Next.js explored with intuitive animations

Next.js has many features with complex mechanisms.
Therefore, static visual materials alone are not sufficient to explain them adequately.
Accordingly, this course is accompanied by intuitive animations as shown below

App Router Layout Related Visual Materials

React Server Component Related Visual Materials

React Server Component Related Visual Materials

Visual materials related to Client Router Cache

As close to real-world scenarios as possible 🚧
Self-developed backend server provided for hands-on practice

To explore Next.js's various caching features in a more practical environment,
we provide you with a custom-built backend server.

swagger

Backend Server API Documentation

Course Structure

Section 1. Introducing Next.js

Before diving into full-scale learning, let's explore what Next.js technology is
and why it's receiving so much attention today.

curi-1-1

Section 1. Introducing Next.js.

curi-1-2

Section 1. Introducing Next.js.

Section 2. Page Router Core Summary

(Optional Course) We'll quickly explore the Page Router that has been provided since the early release of Next.js along with the project.
At the same time, we'll also examine what inconveniences and technical limitations the Page Router has.

curi-2-1

Section 2. Introducing Page Router

curi-2-2

Section 2. Introducing Page Router

Section 3. Getting Started with App Router

The center of attention! We explore App Router. We'll learn what App Router is, what technical differences it has, and also look at basic usage together.

curi-3-1

Section 3. Getting Started with App Router

curi-3-2

Section 3. Getting Started with App Router

Section 4. Data Fetching

We'll explore data fetching using server components.
At the same time, we'll also examine various caching mechanisms provided by Next (data cache, request memoization).

curi-4-1

Section 4. Data Fetching

curi-4-2

Section 4. Data Fetching

Section 5. Page Caching

We'll take a detailed look at the App Router version's page caching: Full Route Cache and Client Router Cache.
At the same time, we'll also examine Route Segment Options that forcibly set page caching options.

curi-5-1

Section 5. Page Caching

curi-5-2

Section 5. Page Caching

Section 6. Streaming & Error Handling

We'll explore streaming, which helps render parts of a page immediately as they become ready.
We'll examine both approaches: using Loading files and using Suspense.

Additionally, we will also examine error handling and page recovery methods using Error files.

curi-6-1

Section 6. Streaming and Error Handling

curi-6-2

Section 6. Streaming and Error Handling

Section 7. Server Actions

We'll explore Server Actions, which generated a hot response when they were first released.
We'll look at how to use Server Actions to add or delete data, and even how to handle loading states and error states.

curi-7-1

Section 7. Server Actions

curi-7-2

Section 7. Server Actions

Section 8. Advanced Routing Patterns (Parallel, Intercepting)

We'll explore the newly provided parallel routes & intercepting routes in App Router.
Using these, we'll implement functionality to display specific pages as modals without disrupting user navigation.

curi-8-1

Section 8. Advanced Routing Patterns

curi-8-2

Section 8. Advanced Routing Patterns

Section 9. Optimization and Deployment

We'll explore optimization methods for images, metadata, pages, regions, and more.
We'll deploy the optimized project to Vercel and work on improving performance once more.

curi-9-1

Section 9. Optimization and Deployment

curi-9-2

Section 9. Optimization and Deployment

5 Principles of the One Bite Series

⚖ Principle 1. Intuitive and Rich Visual Materials

Just like the same food tastes better when it looks good,
I think the same concept explanation will be easier to understand with more intuitive and attractive visual materials.

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

⚖ Principle 2. Kindness

I didn't roughly explain and skip over new terms or concepts when they appeared, nor did I assume you would already know them. I made every effort to ensure you wouldn't need to do separate googling while taking the course.

⚖ Principle 3. Plausibility

To maintain students' interest, I always created lectures while considering plausibility - whether new content that appears during the lecture is always connected to previous content, and whether you might feel like the flow is suddenly interrupted.

⚖ Principle 4. Good Vocalization and Diction

Since you'll be listening to my voice for a long time, I'm always working hard to maintain good vocalization and diction.
To achieve this, I've created the lectures so that you can understand everything even when played at 2x speed.

Give it a listen! 2x Speed Playback Link

⚖ Principle 5. Communication

Students gather in the exclusive community to share knowledge and news with each other and grow together.

Expected Questions Q&A 💬

Q. Who is the target audience for this course?

This course is optimized for those who have basic knowledge of React.js and TypeScript.
However, for TypeScript, we will provide additional explanations and supplementary learning materials throughout the course, so
you should be able to follow along without difficulty, except for the parts involving writing types.

Q. I only want to learn App Router, but do I really need to listen to the Page Router sections as well?

If you are proficient with Page Router, you can skip section 2 and start learning directly from section 3.
However, you need accurate metacognition about whether you truly understand the limitations and characteristics of Page Router.

Portfolio and Personal Videos

INFCON2023 - Why Does TypeScript Do That?

(Book) Bite-Sized React Introduction Video

Recommended for
these people

Who is this course right for?

  • Students of the One Bite series

  • Beginners who are just starting with Next.js

  • Those who want to learn with the latest Next.js (15+) version

  • Those looking for kind and detailed lectures

Need to know before starting?

  • React.js (Basics)

  • TypeScript (Basics)

Hello
This is

35,872

Learners

2,392

Reviews

1,537

Answers

4.9

Rating

13

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안녕하세요 🙇‍♂

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세상에서 가장 따뜻한 개발자 커뮤니티를 만들고자 하는 사람입니다.

 

Curriculum

All

66 lectures ∙ (15hr 33min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

485 reviews

5.0

485 reviews

  • justfix0109464님의 프로필 이미지
    justfix0109464

    Reviews 14

    ∙

    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?)

    • rhs199813739님의 프로필 이미지
      rhs199813739

      Reviews 9

      ∙

      Average Rating 5.0

      5

      8% enrolled

      Front-end lecture === Lee Jeong-hwan

      • dev8678

        I agree!!

    • bibipapa님의 프로필 이미지
      bibipapa

      Reviews 4

      ∙

      Average Rating 5.0

      5

      100% enrolled

      Don't bother digging, just watch this lecture

      • 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.

        • 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!

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