Kaziu

🇯🇵 🖥 Frontend Engineer 🌉 Experience Backend as well ✈ backpacker

🇵🇱 or 🇯🇵 Joined on Aug 12, 2019 https://kaziu.jp

Work

Frontend engineer

Javascript, React, Redux, Typescript, Next.js, styled-component, three.js

PHP, Laravel, Ruby on Rails, mysql

- focus on frontend deep knowledge
- CS (When I get into frontend knowledge deeply, I need to get to know about it as well)

45 posts published

7 comments written

6 tags followed

Pinned

Kaziu

Apr 3 '22

📗 My articles list

2 min read

Kaziu

Dec 6 '23

Explain what is higher order function by Pikachu

#javascript #beginners

1 min read

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Kaziu

Dec 2 '23

What is "return" in useEffect

#javascript #react

1 min read

Kaziu

Aug 3 '23

Difference between Logical OR (||) and Nullish coalescing operator(??)

#javascript

1 min read

Kaziu

Apr 25 '23

17 Frontend code reviews in real project (react, typescript)

#javascript #typescript #beginners #react

5 min read

Kaziu

Mar 11 '23

I wanna make CPU slower than default setting in chrome devtool 😣!

1 min read

Kaziu

Jan 23 '23

I've just created simple frontend Todo app with clean architecture

#javascript #typescript #architecture

1 min read

Kaziu

Jan 2 '23

😅 スクロールで動かなくなります！をどうやってchrome dev tool使用してfrontの問題を解決したのか

#javascript

2 min read

Kaziu

Dec 11 '22

📦 loop and block scope. difference between var and const with image

#javascript

1 min read

Kaziu

Dec 10 '22

🤔 For what prototype??

#javascript

1 min read

Kaziu

Dec 10 '22

🌀 Iterator and Generator

#javascript

2 min read

Kaziu

Sep 28 '22

Closure + Arrow function = extremely short

#javascript #beginners

1 min read

Kaziu

Sep 26 '22

Destructuring assignment in javascript

#javascript #beginners

2 min read

Kaziu

Sep 25 '22

👀 var, let, const in javascript . just 30sec

1 min read

Kaziu

Sep 25 '22

Hoisting in javascript. Magic of declare order

#javascript #beginners

1 min read

Kaziu

Sep 24 '22

😎 imposter of "this". apply(), call(), bind()

#javascript #beginners

2 min read

Kaziu

Sep 22 '22

"Object.assign". It's easier than you think

#javascript #beginners

2 min read

Kaziu

Sep 22 '22

{} === {} is false... 😳WHaT?? Let me explain it with image 🖼

#javascript #beginners

1 min read

Kaziu

Sep 18 '22

🏄‍♂️ DNS record : A, MX, CNAME, TXT

1 min read

Kaziu

Sep 16 '22

SOLID : Dependency Inversion

#typescript #architecture #programming

1 min read

Kaziu

Sep 13 '22

SOLID : Interface Segregation

#programming #typescript #architecture

3 min read

Kaziu

Sep 12 '22

SOLID : liskov substitution

#typescript #programming #architecture

2 min read

Kaziu

Sep 11 '22

SOLID : Open closed principle, explain simply

#programming #typescript #architecture

2 min read

Kaziu

Sep 4 '22

"😭 Escape from crazy boy friend!" explain Dependency Injection simplest way

#javascript #beginners #programming

1 min read

Kaziu

Sep 2 '22

Solve frontend performance problem by chrome dev tool in real project (ag-grid)

#javascript #performance #frontend

3 min read

Kaziu

May 18 '22

😇 "Javascript Closure" I think you can get what it is finally after reading this

#javascript #beginners #frontend #programming

2 min read

Kaziu

May 7 '22

Getting understand "useReducer in React" from real life sample

#javascript #react #beginners #frontend

1 min read

Kaziu

May 7 '22

📖 History of "Stop unnecessary re-rendering component in React !!"

#react #javascript #frontend

203

3 min read

Kaziu

Apr 22 '22

How to resolve N+1 problem on Rails

#rails #sql #performance #ruby

2 min read

Kaziu

Apr 19 '22

🤨⁉ How do you manage about picture file size in your company?

#discuss #webdev #productivity #performance

1 min read

Kaziu

Apr 18 '22

📖 My Linux commands diary

#linux #beginners

1 min read

Kaziu

Apr 15 '22

"Why only my friend's PC doesn't change CSS 😱" ~Real story on my project~

#css #network #aws #cdn

1 min read

Kaziu

Apr 3 '22

😈 Let's run deadlock manually ! [SQL]

#mysql #sql #database #beginners

1 min read

Kaziu

Apr 3 '22

🤹‍♀️ SELECT ORDER [SQL]

#sql #mysql #database #beginners

1 min read

Kaziu

Apr 3 '22

🤠 Group by, Having, Join, View, Sub query, Scala sub query, Case [SQL]

#sql #mysql #database #beginners

3 min read

Kaziu

Apr 1 '22

🤨 What is N+1 problem?

#sql #beginners #database #mysql

1 min read

Kaziu

Apr 1 '22

🤔 What is Database Index?

#database #sql #beginners #mysql

2 min read

Kaziu

Mar 30 '22

☘ How to replace from "new line" to "; new line" on Mac vim

1 min read

Kaziu

Mar 30 '22

🤨 How to change character code on Mac?

#linux #vim #beginners

1 min read

Kaziu

Mar 20 '22

👀 Everyone likes fast website! How? "Frontend performance tips"

#frontend #beginners #performance

5 min read

Kaziu

Mar 18 '22

⏰ How to measure frontend performance?

2 min read

Kaziu

Mar 18 '22

🏋 "RAIL", Important way of thinking about frontend performance

#javascript #beginners #frontend #performance

2 min read

Kaziu

Mar 16 '22

🏗 Structure of browser rendering engine

#javascript #beginners #performance #frontend

2 min read

Kaziu

Mar 14 '22

🍌 Cache. React performance with react-query

#javascript #beginners #react #frontend

2 min read

Kaziu

Feb 18 '22

🌎 My backpacker's 3D MOVING earth portfolio [Next.js/Three.js]

#nextjs #typescript #threejs #react

1 min read

Writing Debut

Four Year Club

Three Year Club

4 Week Writing Streak

Two Year Club

One Year Club

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