frontend-patterns

Frontend Patterns - Collection of React Frontend Development Patterns

Overview

Frontend Patterns is a set of modern frontend patterns designed for React and Next.js developers, covering component design, custom Hooks, state management, performance optimization, and accessibility.

Use Cases

React component development

When you need to build reusable, maintainable React components, you can use the composition-over-inheritance pattern, compound components, and the Render Props pattern to achieve a flexible component architecture.

Frontend performance optimization

When dealing with large list rendering, frequent component re-renders, or an oversized bundle, apply memoization, virtualization, and code-splitting patterns.

State management and form handling

When building complex forms or needing to share state across components, use the Context + Reducer pattern for state management, combined with form validation patterns to implement a complete form handling solution.

Core Features

Component design patterns

Provides classic component patterns such as composition-over-inheritance, compound components (e.g., Tabs, Dropdown), and Render Props to help developers build highly reusable component libraries.

Custom Hooks templates

Includes common custom Hooks implementations like state management (useToggle), async data fetching (useQuery), and debounce (useDebounce), which can be used directly in projects.

Performance optimization solutions

Covers memoization techniques with React.memo, useMemo, and useCallback, code-splitting and lazy loading, and long-list virtualization solutions based on @tanstack/react-virtual.

Common Questions

When should you use custom Hooks in React?

You should extract logic into a custom Hook when multiple components need to reuse the same stateful logic. For example, toggle state, async data fetching, and form handling logic can all be encapsulated into custom Hooks to improve code reuse and maintainability.

How can you optimize React component rendering performance?

You can optimize by: wrapping pure components with React.memo to avoid unnecessary re-renders; using useMemo to cache computed results; using useCallback to stabilize function references; and virtualizing long lists so only visible items are rendered.

What’s the difference between Context API and Redux?

The Context API is suitable for small to medium-sized apps' state management, requiring no extra dependencies—using the Context + Reducer pattern can be sufficient. Redux is better suited for large, complex applications, offering more complete features like time-travel debugging, a middleware ecosystem, and developer tool support. Choose based on project scale and your team's tech stack.