TLDR:

Async state is where frontends often become fragile: loading, success, and error states spread across components, race conditions appear, and refactors get risky. This guide shows practical patterns—from state machines with useReducer and a reusable useAsync hook to server-state libraries like React Query and SWR—and explains how Feature-Sliced Design helps you place async logic cleanly for scalable teams.

TLDR:

Tailwind CSS has transformed modern frontend styling with its utility-first philosophy and powerful Just-in-Time compiler—but is it truly an architectural choice? This comprehensive guide analyzes Tailwind’s impact on scalability, modularity, and long-term maintainability, comparing it with established patterns like MVC, Atomic Design, and Domain-Driven Design. Discover how Tailwind integrates with Feature-Sliced Design (FSD) to build structured, high-cohesion frontend systems that remain clean, scalable, and team-friendly as they grow.

TLDR:

Learn how React class component lifecycle methods work (mounting, updating, unmounting) and how to translate them into hook-based patterns with useEffect and useLayoutEffect. This guide includes practical debugging tips for legacy code, clear mapping diagrams you can follow, and architectural guidance for keeping side effects modular using Feature-Sliced Design (FSD).

TLDR:

React’s useCallback isn’t about making code “faster” by default—it’s about keeping function references stable so memoized components and hook dependencies behave predictably. This guide explains referential equality, the core performance use cases with React.memo and useEffect, common anti-patterns, and how Feature-Sliced Design supports scalable, low-coupling callback boundaries in large applications.

TLDR:

useMemo can speed up React apps by caching expensive derived data and stabilizing props for memoized children—but it can also add overhead when used blindly. This guide explains practical heuristics, profiling-driven decisions, and how Feature-Sliced Design reduces render churn by enforcing boundaries and public APIs.

TLDR:

React’s useEffect is where side effects either become a clean synchronization layer—or turn into infinite loops, stale closures, and hidden coupling. This guide explains the render/commit model, how the dependency array really works, safe async data fetching with cleanup, and practical debugging tactics. You’ll also see how Feature-Sliced Design helps keep effects isolated, reusable, and scalable in large React codebases.

TLDR:

React hooks are powerful, but without clear boundaries they can turn components into tightly coupled “logic blobs.” This architectural guide explains the core hooks, the Rules of Hooks, and the most common useEffect pitfalls—then shows how Feature-Sliced Design (FSD) helps you structure custom hooks, public APIs, and feature logic for large-scale React applications.

TLDR:

Choosing the right CSS architecture is a critical step toward building scalable and maintainable frontend applications. This article explores popular approaches such as BEM, CSS Modules, CSS-in-JS, and Tailwind CSS, and explains how Feature-Sliced Design provides a structured, long-term solution for managing styles in large, evolving codebases.

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Design tokens provide a single source of truth for colors, spacing, typography, and motion, enabling consistent theming and scalable UI architecture. This article explores how design tokens work, how to implement them with CSS variables, and why Feature-Sliced Design is a robust foundation for managing tokens in large frontend codebases.

TLDR:

Jotai brings state management back to fundamentals: tiny atoms you can compose into a reliable dependency graph, without committing to a heavyweight global store. This article walks through atoms, derived and action patterns, async and SSR considerations, and shows how Feature-Sliced Design helps keep atomic state modular, testable, and scalable in large frontend codebases.