Built in Components

• https://react.dev/reference/react/components

Fragment

• lets you group elements without a wrapper node
• Advantages:
  • keeps the DOM cleaner
  • helps avoid potential CSS and layout issues that might arise from unnecessary wrapper elements
  • Maintains the semantic integrity of the HTML structure by avoiding unnecessary wrapper elements.
• Short Syntax: <></>

StrictMode

• introduced in v16.3+
• It performs additional checks on the application:
  • Identifying components with unsafe lifecycle methods
  • warning about using any legacy API/functions

Profiler

• lets you measure rendering performance of a React tree programmatically

Suspense

• lets you display a fallback while the child components are loading