React Core Patterns

Purpose

Essential React 19 patterns for building modern applications with hooks, Suspense, lazy loading, and TypeScript.

Note: React 19 (released December 2024) breaking changes:

• forwardRef no longer needed - pass ref as a prop directly
• propTypes removed (silently ignored)
• New JSX transform required
• React.FC type discouraged - use direct function components instead

When to Use This Skill