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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).

Education

UCI

Pronouns

he/him

Work

CEO

How to Retrieve Travel Time with React Native Maps Directions

How to Retrieve Travel Time with React Native Maps Directions

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

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

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

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

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2 min read
Mastering AWS Cognito: A Comprehensive Guide

Mastering AWS Cognito: A Comprehensive Guide

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2 min read
Handling SVGs in SwiftUI: A Comprehensive Guide with SwiftSVG

Handling SVGs in SwiftUI: A Comprehensive Guide with SwiftSVG

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Harnessing the Power of React with IntersectionObserver!

Harnessing the Power of React with IntersectionObserver!

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

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

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

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

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Boost Your JavaScript Performance with the Debounce Technique!

Boost Your JavaScript Performance with the Debounce Technique!

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Diving Deep into the HTML Living Standard

Diving Deep into the HTML Living Standard

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Discover the Origins of HTML Tags! Surprising Backgrounds and Uses

Discover the Origins of HTML Tags! Surprising Backgrounds and Uses

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3 min read
Efficiently Using Environment Variables in FastAPI!

Efficiently Using Environment Variables in FastAPI!

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Mastering Flexible Component Design in React with the Compound Components Pattern

Mastering Flexible Component Design in React with the Compound Components Pattern

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

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

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JavaScript Made Easy: Master Destructuring Assignment in a Flash

JavaScript Made Easy: Master Destructuring Assignment in a Flash

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Handling Environment Variables in Vite, React, TypeScript Projects!

Handling Environment Variables in Vite, React, TypeScript Projects!

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Mastering TypeScript: Using the Pick Utility Type

Mastering TypeScript: Using the Pick Utility Type

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

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

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

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

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

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

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

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

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Understanding OAuth 2.0 with the help of AI

Understanding OAuth 2.0 with the help of AI

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Understanding OAuth 2.0 with the help of AI

Understanding OAuth 2.0 with the help of AI

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Mastering Environment Variables in Vite+TypeScript+React

Mastering Environment Variables in Vite+TypeScript+React

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

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

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Secure Your JavaScript Project with 'npm audit'!

Secure Your JavaScript Project with 'npm audit'!

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

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

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

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

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2 min read
JavaScript Operator Precedence and Template Strings: Avoiding Bugs and Clarifying Code

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

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

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

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2 min read
React Performance Boost: An Introduction to Million.js

React Performance Boost: An Introduction to Million.js

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

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

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

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

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Exploring React's New Features: Concurrent Mode and useDeferredValue

Exploring React's New Features: Concurrent Mode and useDeferredValue

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Master Git Submodules With This Comprehensive Guide!

Master Git Submodules With This Comprehensive Guide!

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

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

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2 min read
Demystifying getElementById and useRef: A Beginner's Guide

Demystifying getElementById and useRef: A Beginner's Guide

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Demystifying Dependency Injection in TypeScript: Comprehensive Examples and Benefits

Demystifying Dependency Injection in TypeScript: Comprehensive Examples and Benefits

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

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

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

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

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

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

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Mastering CacheStorage in JavaScript for Beginners: A PWA Guide

Mastering CacheStorage in JavaScript for Beginners: A PWA Guide

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1 min read
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