Notelogs

Render errors that go uncaught crash your entire React tree. Error boundaries let you isolate failures and show meaningful fallback UI instead of a blank screen.

Waiting for a server round-trip before updating the UI makes fast apps feel slow. useOptimistic lets you show the result immediately and roll back cleanly if the server disagrees.

Media queries respond to the viewport, but container queries respond to the element's parent. Here's how to use them to build components that adapt to their context, not the screen.

Grid and Flexbox solve different layout problems. Choosing the right one comes down to a single question: are you laying out content in one dimension or two?

Accessibility in React goes beyond ARIA labels. Semantic HTML, focus management, and keyboard navigation form the foundation of an inclusive UI that also happens to be easier to test.

Debouncing and throttling are essential tools for controlling how often expensive callbacks fire in response to high-frequency events like keypresses, scroll, and resize.

Suspense boundaries and streaming SSR let React send HTML to the browser incrementally, so users see content faster without waiting for the slowest data fetch on the page.

useEffect is powerful but easy to misuse. Stale closures, missing dependencies, infinite loops, and forgotten cleanup are the most common failure modes — here's how to spot and fix each one.

React's Virtual DOM and reconciliation algorithm determine exactly what gets re-rendered and when. Understanding these mechanics is the foundation of writing performant React applications.

A practical, developer-friendly guide to modern React best practices: component design, state management, performance, forms, data fetching, accessibility, testing, and production hygiene—with copy-paste code examples you’ll actually use.

Authentication and authorization are two core concepts in web security that are often confused. This guide explains the difference in simple terms, shows real world examples, and includes practical code samples to help developers implement both correctly.

Type safety is rapidly becoming a core part of professional JavaScript development. This post explains why type safety matters, how it improves code quality, and how developers can implement it using practical real world examples with TypeScript and modern tools.

Browser caching helps websites load faster by storing frequently used files locally on a user’s device. This blog explains how caching works, why it is important for performance and SEO, and how developers can implement it with practical code examples.

Authentication is the backbone of secure web applications. This guide explains in simple terms how modern authentication works, including OAuth, JSON Web Tokens, and traditional session based authentication, with clear examples and practical code samples.

Git and GitHub are essential tools for modern web development, helping developers track changes, collaborate with teams, and manage code efficiently. This beginner friendly guide explains what Git and GitHub are, how they work, and includes practical code examples to help you get started.

Web security threats are increasing as websites become more complex and data driven. This blog explains the most common web security risks, how they work in simple terms, and practical ways developers can prevent them.

Serverless architecture is reshaping how applications are built, deployed, and scaled. This blog explains what serverless computing is, its benefits, challenges, and how it will shape the future of web development.

Storing JWTs in localStorage is a common practice, but it exposes your application to serious security risks. This article explains why it is dangerous, how attacks work in real life, and what safer alternatives you should use instead.