kouta222 articles - 21 total
Mastering Kotlin Delegation: From Property Delegates to Class Composition
Introduction In software engineering, delegation is an object-oriented design pattern that...
Behind the Scenes of JavaScript: How Your Code Actually Runs
JavaScript doesn’t just “run” your code instantly — it goes through a series of steps inside the...
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SEO guide for Software Developers kouta222 ・ Aug 10 ...
# OpenNext vs. Vercel: how to run Next.js anywhere (AWS, Cloudflare, Netlify) — and when to stick with Vercel
TL;DR Vercel is the "it just works" home for Next.js with zero-config deploys,...
Understanding Spring Framework: Core Philosophy, IoC/DI, and AOP
Introduction The Spring Framework has transformed Java enterprise development with its...
SEO guide for Software Developers
"When I was assigned to the SEO project, I thought: ‘I build features, I fix bugs — why do I need to...
Understanding Null Safety in Kotlin: A Beginner's Guide
If you're coming from Java or just starting to learn Kotlin (like me!), one of the most important...
🔥 The Next Big Things in Frontend: Svelte, Astro, Qwik & Solid (2025 Edition)
React, Angular, and Vue have dominated the frontend space for over a decade. But the world of...
# AWS SAA Study Guide: What are Ephemeral Ports?
Introduction While studying for AWS SAA (Solutions Architect Associate) certification, I...
AWS Storage Services Comparison: S3, EBS, EFS, and FSx
Amazon Web Services (AWS) offers multiple storage solutions designed to meet different use cases and...
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Understanding Blob in JavaScript: Handling Binary Data on the...
Understanding Blob in JavaScript: Handling Binary Data on the Client Side
Blob (Binary Large Object) plays a crucial role when working with file or binary data on the client...
An Introduction to Spring AOP: How to Keep Your Code Clean with Aspect-Oriented Programming
This article explains the fundamental concepts of AOP (Aspect-Oriented Programming) in the Spring...
Understanding the Nothing Type in Kotlin
In Kotlin, the Nothing type plays a unique role that is essential for writing expressive, safe, and...
🚀 Caching in Next.js: The Four-Tier System Explained
Next.js provides a sophisticated, multi-layered caching strategy to optimize performance and user...
🚀 Introduction to Next.js Server Components for Beginners
Next.js Server Components (RSC) are a new way to build modern web apps that are faster, more...
Mastering Collections in Kotlin
Summary Kotlin offers a powerful collection framework that is explicitly divided into...
🌟 Complete Guide for Individual Developers: Recommended Hotel Affiliate APIs 【By Region, Difficulty, and Features】
I recently had the opportunity to use hotel affiliate APIs for an individual project, so I decided to...
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What is the Lexical Editor?
Introduction Hi! I'm kouta222 I had the opportunity to use the Lexical Editor during my...
Mastering Blob on the Web: A Practical Guide for Handling Files and Binary Data
Working with Blob in Web Development As part of my internship, I recently started working...