Custom Hooks Pattern

Overview

Custom hooks are JavaScript functions that start with "use" and may call other hooks. They allow you to extract component logic into reusable functions, helping you organize code, share stateful logic between components, and avoid duplicating code. Custom hooks are one of React's most powerful features for code reuse.

Examples

Click on any of these examples to see detailed demonstrations of different custom hooks:

Why Use Custom Hooks?

Custom hooks provide a clean way to reuse stateful logic across components without complex patterns like higher-order components or render props. They can encapsulate side effects, manage state, and handle complex logic while keeping your components clean and focused on UI rendering.

Key Benefits of Custom Hooks

  • Reuse stateful logic across multiple components
  • Abstract complex logic into simplified interfaces
  • Compose multiple hooks to create more powerful custom hooks
  • Keep component code clean by extracting implementation details
  • Make testing easier by isolating logic from components
  • Share logic within a project or across projects via npm packages