rc-resize-observer is a React component providing a ResizeObserver API wrapper. It enables reacting to size changes of a DOM element within your React application. By wrapping a target element, rc-resize-observer allows components to be notified precisely when their dimensions alter, crucial for responsive design and dynamic layouts. It simplifies the integration of ResizeObserver, abstracting away the direct use of browser APIs for managing layout adjustments efficiently. Utilizing this component leads to improved UI responsiveness and a smoother user experience.