Built-in React APIs

•  CreateContext lets you define and provide context to the child components. Used with useContext.
• forwardRef lets your component expose a DOM node as a ref to the parent. Used with useRef.
• lazy lets you defer loading a component’s code until it’s rendered for the first time.
• memo lets your component skip re-renders with same props. Used with useMemo and useCallback.
• startTransition lets you mark a state update as non-urgent. Similar to useTransition.
• act lets you wrap renders and interactions in tests to ensure updates have processed before making assertions.