How to build your professional network as a developer — authentic strategies
How to build your professional network as a developer — authentic strategies Building a Genuine Professional Network in Tech: A Practical Guide for In…
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How to write good commit messages and pull requests — a team guide
How to write good commit messages and pull requests — a team guide This will be a practical, structured post focused on clarity, consistency, and real…
CSRF, and the cookie flag
<form action= "https://bank.com/transfer" method= "POST" > <input name= "to" value= "attacker" > <input name= "amount" value= "10000" &…
Backend Basics for Frontend Engineers: Dive into SQL and APIs with Node.js
If you've spent most of your career building beautiful UIs, managing state, and wrestling with CSS, the backend can feel like someone else's problem. …
How to optimize application performance — a hands on tutorial
How to optimize application performance — a hands on tutorial Performance Optimization: Measure Before You Optimize Donald Knuth's famous warning-"pre…
How to design APIs that developers love to use
How to design APIs that developers love to use Practical API Design: REST, GraphQL, and gRPC Choose your API style based on requirements, not hype. RE…
How to handle production incidents — a step by step guide for engineers
How to handle production incidents — a step by step guide for engineers Incident Response Under Pressure When an outage hits, the goal is not to look …
How to approach hard problems — first principles thinking for engineers
How to approach hard problems — first principles thinking for engineers First principles thinking is a powerful engineering method for solving hard pr…
How to use LLMs effectively in your daily work — a practical tutorial
How to use LLMs effectively in your daily work — a practical tutorial 1. Core principles for dev work LLMs are best at transforming and iterating on a…
Stop the Lag: Optimizing Heavy Browser-Based PDF Image Extraction
Browser-based PDF processing is a performance minefield. When you attempt to extract high-resolution images from a multi-page PDF document entirely on…
Building Blazing-Fast Ebook Converters: Debouncing, Chunking & Web Workers for Responsive UI
Responsive UIs for High-Throughput Ebook Converters: Debouncing, Chunking & Web Workers Ever tried to build a browser-based tool that processes la…
Stop Over-Engineering Your UI: Material 3 for Blazor (Without the JS State Management Nightmare)
If you have built a web app in the last five years using the dominant JavaScript frameworks, you know the drill. You start a simple project, and withi…
BrowserRouter
A BrowserRouter is the built-in context provider component from the `react-router-dom library that enables client-side routing web application.It acts…
Front-end, regrounded: Why Wraplet might be what you’re missing
This post was originally written at https://wraplet.dev/blog/why-wraplet where the code examples are interactive. The Landscape Difficulty in recogniz…
Best Frontend Coding Agent: AI Workflow Shortlist
Disclosure: I work on Frontman, so I am biased. This is adapted from Frontman's full guide to frontend coding agents, with the argument condensed for …
API
What is API? API stands for Application Programming Interface. It is a bridge that allows two applications to communicate and exchange data with each …
Stop Using Global State: Master Localized React Context ⚡
The Over-Globalized State Trap When building highly complex UI elements—like an advanced Kanban Board or an interactive multi-step data mapping wizard…
The Easiest Way to Implement Theme Toggling in React 19 using next-themes & Tailwind CSS v4
There is almost no React project today that doesn’t need at least two themes (Light and Dark). While you could build a custom theme toggle using the R…
How to Implement Dark/Light Mode with No Flickers in Next.js
Implementing a dark mode toggle in Next.js seems straightforward until you run into UI flickers, React hydration mismatch errors, or styling conflicts…
Why Some Websites Feel Instantly Better to Use
We browse websites every day, and some feel really nice to use, while others technically work perfectly fine but still start to feel frustrating after…
Advanced React Patterns I Wish I Knew 5 Years Ago
Five years of React. Hundreds of components. Dozens of refactors. And the lesson I keep re-learning? How you structure your components matters more th…
Frontend Engineering Beyond Pixels: The Architecture of Digital Accessibility
From a high-level perspective, frontend engineering functions as the translation layer between raw, machine-readable data and human interaction throug…
CSS Scroll-Driven Animations: No JavaScript Required
Originally published on danholloran.me If you've ever added a scroll progress bar to a page or built a "reveal on scroll" effect, you've probably reac…
Components are states
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Understanding Basic HTML & CSS Concepts for Beginners
While learning Full Stack Web Development, I explored some important HTML and CSS concepts that help in building clean and responsive websites. Global…
GeekNews Frontend Weekly Deep Dive - 2026-05-25
이번 프론트엔드 묶음은 브라우저와 운영체제가 이미 제공하는 기본값을 어디까지 믿고, 어디서부터 개인화하거나 다시 만들어야 하는지를 다룬다. 1. omarchy는 배포판이 아니다 핵심 내용 요약: Omarchy를 둘러싼 논쟁의 핵심은 배포판이라는 이름보다, Arch 위에…
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat CSS in 2026 has fundamentally changed how we write styles. The comb…
React.js ~use() hook for Caching Problem~
This is where most tutorials stop. But if you try to use use() with a promise created inside a Client Component, you will hit a subtle and frustrating…
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat CSS in 2026 has fundamentally changed how we write styles. The comb…
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat
CSS in 2026: Container Queries, Cascade Layers, and the End of Utility-Class Bloat CSS in 2026 has fundamentally changed how we write styles. The comb…