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[Renewal] TypeScript All-in-One: Part 1. Basic Grammar

Learn the basic syntax of TypeScript, how to analyze types written by others, and how to write your own types.

(4.9) 66 reviews

1,553 learners

  • zerocho
TypeScript

Reviews from Early Learners

What you will learn!

  • TypeScript

  • TSC(compiler)

  • Interface, type alias

  • Generics, Overloading

  • Utility Types

Now it's a necessity, not an option,
Have fun learning TypeScript! 🦾

Mistakes in JavaScript
Hold on tight, TypeScript ➰

Typescript

With the addition of types to JavaScript,
Let me know in advance about type-related issues while coding.
It serves to reduce developer errors .

The most daunting part of learning TypeScript is learning all the grammar but not being able to apply it in real-world situations. Learning interfaces, type aliases, generics, mapped types, and indexed signatures is pointless if you don't know when to use which grammar.

I previously offered a TypeScript course on learning while building web games, but I realized students still struggled with analyzing others' types and creating their own. So, I completely revamped the course to focus on how the TypeScript syntax they learned is applied in real-world situations and provide hands-on practice in how to write types .

I recommend this to these people 😎

From JS to TypeScript
Those who want to switch

A type made by someone else
People who find analysis difficult

I type it myself
People who feel lost when trying to write


What you will learn ✍


1. TypeScript
Learn basic grammar .


2. Type written by someone else
Learn how to analyze.


3. I type it myself
Learn how to write.

In this lecture, we will teach you how to analyze and use types yourself!
After taking this course, you'll understand the basic syntax of TypeScript and be able to analyze and apply the type definitions it provides, such as lib.es5.d.ts and utility types, to your own code. Conversely, you'll even be able to write your own type definitions without even looking at lib.es5.d.ts or utility types.

We'll help you write (or at least analyze) the following code yourself:


Tools covered here 🙌

Use Chrome browser and Visual Studio Code (or WebStorm).


Quickly answer the question
I'll answer you
🗒

The best part about my course is the Q&A. Ask any questions and I'll answer them within a day.
Please study actively by freely asking questions about course-related content.
It will help you understand the content better!


Who is ZeroCho?

Node textbook

Web Development Bestseller
, author

Today's Pickup

Kakao Mobility Today's Pickup
Technical Part Manager


Expected Questions Q&A 💬

Q. What version of TypeScript do you use?

This was filmed with version 4.7. You can use a higher version.

Q. Where can I find the source code and lecture notes?

You can check it out on Zerocho's GitHub .

Q. Do I need to know JavaScript?

Yes, you need to know basic JavaScript grammar ( like the Let's Get Started JavaScript course ) to understand the code.

Q. What are the characteristics of the lecture?

In this course, after learning basic grammar, you'll practice analyzing types created by others, such as lib.es5.d.ts and utility types. Conversely, you'll practice re-creating those types yourself. We'll start simple and gradually build to more complex implementations. We'll further explore practical library analysis in the Practical Analysis section.

Q. What is the difference from the practical analysis section?

In the upcoming practical analysis section, we'll analyze and practice writing types for React, Redux, Express, Node, jQuery, and Axios libraries, assuming you already know the grammar covered in the basic grammar section. For this, you'll need to be familiar with the basic grammar section.

Recommended for
these people

Who is this course right for?

  • For those who want to learn TS after learning JS

  • Anyone who wants to make the software a little more stable

Need to know before starting?

  • JavaScript grammar knowledge

Hello
This is

65,757

Learners

1,623

Reviews

9,709

Answers

4.8

Rating

22

Courses

제 강의의 장점은 Q&A입니다(인프런 답변왕 2회 수상). 24시간 이내에 최대한 답변드립니다! 같이 고민한다는 느낌으로 답변 드릴게요!

One of the key strengths of my courses is the Q&A support. (Winner of the Inflearn Q&A King award twice) I respond to your questions within 24 hours, doing my best to help you out! You’ll feel like we’re solving the problems together.

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  • Author of Node.js Textbook, Self-Guided JavaScript by ZeroCho, Let's Get IT JavaScript, and TypeScript Textbook

  • Operator of ZeroCho.com

  • Currently running a YouTube channel ZeroCho TV, covering development topics

  • CTO at SmoreTalk

  • Former CTO at Today Pickup (acquired by Kakao Mobility, where I became the youngest lead developer)

Curriculum

All

42 lectures ∙ (7hr 41min)

Published: 
Last updated: 

Reviews

All

66 reviews

4.9

66 reviews

  • xiu15님의 프로필 이미지
    xiu15

    Reviews 3

    Average Rating 4.7

    5

    48% enrolled

    I paid for the lecture to listen to it twice after listening to the live lecture a while ago!! TS Who said it was easy!?? Java developer? C# developer, please be quiet. I am a junior developer who has never learned a typed language and has been suffering from dust-like worries and agony while working on TypeScript. Errors lead to errors... and eventually, only codes that exclude errors pile up... I listened to a lot of famous lectures and studied the docs, but Even well-known lectures often explain the grammar in the docs (if you understand it by just reading the handbook, why bother?) and the examples lack depth + new content is missing, so I was disappointed. Without a general understanding of TS, I was in a hurry to fix individual types or errors, so my skills did not improve and I just sighed more and more. At that time!! I went to spy on Zerocho's lecture because the alarm went off, and when I came across the lecture, I was so shocked because it was so good. I felt like I was being compensated for the past N months of suffering because of TS?? Ah, this is how you should study TypeScript!! I felt that. As shown in the course introduction video, this course was especially "renewed" after receiving feedback from students, so the parts that covered practical materials and analyzing actual library types were overwhelmingly good. Also, it seems to be especially good for people who have tried it a little bit like me but are having difficulties, rather than people who don't know anything about TS at all. For those who don't know anything about TS at all, I recommend reading the TypeScript Handbook and starting. I would like to thank my teacher again for working hard to edit and upload such a great course!

    • zerocho
      Instructor

      First + Thank you for your sincere course review~

  • kimuyjoong2two님의 프로필 이미지
    kimuyjoong2two

    Reviews 9

    Average Rating 4.6

    5

    100% enrolled

    The lectures are detailed. They are not just lectures that explain grammar, but they actually create grammar. They also answer questions quickly. They are the best.

    • kyungjun님의 프로필 이미지
      kyungjun

      Reviews 10

      Average Rating 5.0

      5

      93% enrolled

      I wanted to go beyond simple type definitions while working on the job and define types and read typescript files of libraries, and I think this lecture is suitable for that. And as I have accumulated know-how about lectures, the breathing, flow, and examples of the lectures have become clearer, making it easier to listen to. Thank you for the great lecture.

      • ohsubin님의 프로필 이미지
        ohsubin

        Reviews 13

        Average Rating 4.9

        5

        100% enrolled

        Thanks to you, I feel like I've gotten closer to TypeScript. I learned a lot by analyzing and creating together. I'll have to go back and fill in the missing parts. I'll watch Part 2 lectures and get closer to TypeScript. Thank you and stay healthy.

        • rlaks57579885님의 프로필 이미지
          rlaks57579885

          Reviews 1

          Average Rating 5.0

          5

          31% enrolled

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