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HidetoshiYanagisawa

Coder, traveler, dreamer. Running a coding company while globetrotting (76 countries and counting). Specialize in front-end development (React/Vue, React Native).

Irvine, CA Joined on Jul 28, 2023 yanagisawa@ultrasevenstar.com

Education

UCI

Pronouns

he/him

Work

CEO

React/Vue/TypeScript/PHP/Rails/Node.js/Python/react-native

Currently diving into Python and exploring efficiency improvements in business operations using ChatGPT

Working on a project to digitalize Japanese disability certificates using React Native, and developing a B2B platform with React

Open to join new front-end projects or provide help with React/React Native. Keen to discuss and exchange advice on these technologies, and to network with new people."

49 posts published

0 comments written

20 tags followed

HidetoshiYanagisawa

Aug 30 '23

How to Retrieve Travel Time with React Native Maps Directions

#reactnative #maps #tutorial #javascript

2 min read

HidetoshiYanagisawa

Aug 24 '23

Efficiently Persisting State in React Native with Recoil and react-native-mmkv

#reactnative #recoil #expo #tutorial

2 min read

HidetoshiYanagisawa

Aug 24 '23

Implementing Attractive Bottom Sheets in React Native with `react-native-bottom-sheet`

#reactnative #mobiledev #tutorial #beginners

2 min read

HidetoshiYanagisawa

Aug 22 '23

Mastering AWS Cognito: A Comprehensive Guide

#aws #cognito #authentication #javascript

2 min read

HidetoshiYanagisawa

Aug 22 '23

Handling SVGs in SwiftUI: A Comprehensive Guide with SwiftSVG

#swiftui #svg #ios #swift

2 min read

HidetoshiYanagisawa

Aug 18 '23

Harnessing the Power of React with IntersectionObserver!

#javascript #react #webdev #frontend

3 min read

HidetoshiYanagisawa

Aug 18 '23

Demystifying JavaScript's New `.at()` Array Method!

#javascript #webdev #arrays #beginners

2 min read

HidetoshiYanagisawa

Aug 17 '23

Resolve 404 Errors in React Router with Apache's .htaccess

#react #apache #routing #webdev

2 min read

HidetoshiYanagisawa

Aug 15 '23

Boost Your JavaScript Performance with the Debounce Technique!

#javascript #performance #webdev #tutorial

2 min read

HidetoshiYanagisawa

Aug 13 '23

Diving Deep into the HTML Living Standard

#html #webdev #standard #beginners

2 min read

HidetoshiYanagisawa

Aug 13 '23

Discover the Origins of HTML Tags! Surprising Backgrounds and Uses

#html #webdev #beginners #tutorial

3 min read

HidetoshiYanagisawa

Aug 11 '23

Efficiently Using Environment Variables in FastAPI!

#fastapi #python #environmentvariables #bestpractices

2 min read

HidetoshiYanagisawa

Aug 11 '23

API Gateway Unleashed: An Introduction, Benefits, and How to Use it on AWS and GCP

#apigateway #aws #gcp #beginners

2 min read

HidetoshiYanagisawa

Aug 9 '23

Implementing Landscape Mode for Smartphones: iPhone Pro Max Compatibility Without Affecting PC Displays

#css

2 min read

HidetoshiYanagisawa

Aug 8 '23

Master the Technique of 'Update Only When Changes Occur' in SQL! Boost Your Database Efficiency

#sql #database #optimization #programming

2 min read

HidetoshiYanagisawa

Aug 8 '23

Elevate Your Site to the Next Level! Master Landscape & Portrait Mode with CSS Media Queries

#css #responsive #webdev #design

1 min read

HidetoshiYanagisawa

Aug 6 '23

Type Safety Made Easy for Beginners: How to Effortlessly Achieve It with tRPC

#typescript #webdev #trpc #tutorial

2 min read

HidetoshiYanagisawa

Aug 6 '23

Solving the 404 Error in React + React Router Projects: A Comprehensive Guide

#react #reactrouter #webdev #tutorial

2 min read

HidetoshiYanagisawa

Aug 6 '23

Mastering Server Components in React 18! Achieve the Optimal Balance Between Client and Server

#react #javascript #webdev #tutorial

2 min read

HidetoshiYanagisawa

Aug 5 '23

Mastering Flexible Component Design in React with the Compound Components Pattern

#react #javascript #webdev #designpatterns

2 min read

HidetoshiYanagisawa

Aug 5 '23

Identify Bottlenecks in Your React App! An Introduction to Performance Analysis with React Profiler API

#react #javascript #webdev #performance

2 min read

HidetoshiYanagisawa

Aug 5 '23

JavaScript Made Easy: Master Destructuring Assignment in a Flash

#javascript #webdev #tutorial #beginners

2 min read

HidetoshiYanagisawa

Aug 4 '23

Handling Environment Variables in Vite, React, TypeScript Projects!

#vite #react #typescript #environmentvariables

2 min read

HidetoshiYanagisawa

Aug 4 '23

Mastering TypeScript: Using the Pick Utility Type

#typescript #javascript #coding #programming

2 min read

HidetoshiYanagisawa

Aug 4 '23

Dynamically Modifying Validation Schemas in Zod: A TypeScript and React-Hook-Form Example

#typescript #react #zod

2 min read

HidetoshiYanagisawa

Aug 4 '23

Mastering Type Safety! An Introduction to TypeScript's Type Guards

#typescript #javascript #programming #coding

2 min read

HidetoshiYanagisawa

Aug 4 '23

Boost Your React App Performance with React.lazy and Suspense!

#react #javascript #webdev #performance

2 min read

HidetoshiYanagisawa

Aug 4 '23

Power Up Your CSS! Visualizing Form Validation with :has() Selector

#css #webdev #html #formvalidation

2 min read

HidetoshiYanagisawa

Aug 4 '23

Understanding OAuth 2.0 with the help of AI

#oauth #authentication #security #webdev

3 min read

HidetoshiYanagisawa

Aug 4 '23

Understanding OAuth 2.0 with the help of AI

#oauth #authentication #security #webdev

3 min read

HidetoshiYanagisawa

Aug 3 '23

Mastering Environment Variables in Vite+TypeScript+React

#vite #typescript #react #environmentvariables

2 min read

HidetoshiYanagisawa

Aug 3 '23

How to Detect URL Changes and Fire a Specific Function in Next.js

#nextjs #react #javascript #webdev

3 min read

HidetoshiYanagisawa

Aug 2 '23

Secure Your JavaScript Project with 'npm audit'!

#javascript #npm #security #beginners

2 min read

HidetoshiYanagisawa

Aug 2 '23

NPM Commands Practical Guide: Get to Know Your Packages and Keep Your Project Up-to-Date

#npm #javascript #webdev

2 min read

HidetoshiYanagisawa

Aug 2 '23

Master Image Resize Modes in HTML/CSS with object-fit

#html #css #beginners #tutorial

2 min read

HidetoshiYanagisawa

Aug 2 '23

JavaScript Operator Precedence and Template Strings: Avoiding Bugs and Clarifying Code

#javascript #beginners

2 min read

HidetoshiYanagisawa

Aug 2 '23

Tidy Up Your Git: A One-Liner for Deleting Merged Branches

#git #zsh #cli #beginners

2 min read

HidetoshiYanagisawa

Aug 2 '23

React Performance Boost: An Introduction to Million.js

#react #javascript #webdev #performance

2 min read

HidetoshiYanagisawa

Aug 2 '23

Modern Frontend Development's Secret Weapon: Aspida for Simple and Type-safe API Calls

#javascript #typescript #aspida #beginners

2 min read

HidetoshiYanagisawa

Aug 1 '23

Embrace the Power of Nullish Coalescing Operator (??) in JavaScript/TypeScript

#javascript #typescript #programming

2 min read

HidetoshiYanagisawa

Aug 1 '23

Exploring React's New Features: Concurrent Mode and useDeferredValue

#javascript #react #webdev

2 min read

HidetoshiYanagisawa

Aug 1 '23

Master Git Submodules With This Comprehensive Guide!

#git #github #tutorial #beginners

2 min read

HidetoshiYanagisawa

Jul 29 '23

Understanding and Proper Usage of 'on' and 'handle' Prefixes in React Function Naming

#react #javascript #coding #beginners

2 min read

HidetoshiYanagisawa

Jul 29 '23

Demystifying getElementById and useRef: A Beginner's Guide

#javascript #react #beginners #programming

2 min read

HidetoshiYanagisawa

Jul 28 '23

Demystifying Dependency Injection in TypeScript: Comprehensive Examples and Benefits

#javascript #beginners #typescript

3 min read

HidetoshiYanagisawa

Jul 28 '23

Must-read for TypeScript Beginners! Deepen your Understanding of Generics

#typescript #javascript #frontend #beginners

2 min read

HidetoshiYanagisawa

Jul 28 '23

Leveraging Service Workers for Advanced Caching Strategies in PWA: A Deep Dive for Beginners

#javascript #cachestorage #beginners #serviceworkers

1 min read

HidetoshiYanagisawa

Jul 28 '23

Easy Peasy! Managing CacheStorage in JavaScript for PWA: A Guide for Beginners

#javascript #pwa #cachestorage #beginners

2 min read

HidetoshiYanagisawa

Jul 28 '23

Mastering CacheStorage in JavaScript for Beginners: A PWA Guide

#javascript #cachestorage #pwa #beginners

1 min read

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