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DOM Interaction
  • useClickAway
  • useHover
  • useResize
  • useScrollDirection
  • useScrollLock
  • useWindowResize
  • useWritingMode
State & Storage
  • useClipboard
  • useControllableState
Timing
  • useDebouncedTransition
  • useDeferredDebounce
  • useInterval
  • useTimeout
Utility
  • useBreakpoint
  • useClient
  • useDisclosure
  • useStep
  • useWindowSize
Observer
  • useIntersectionObserver
  • useInView
k8ordo

React libraries that use Baseline features without holding back.

Packages
  • @k8ordo/ui
  • @k8ordo/form
  • @k8ordo/state
  • @k8ordo/router
  • @k8ordo/static
  • @k8ordo/server
UI
  • Get Started
  • Theming
  • i18n
  • Components
  • Hooks
  • Helpers
  • AI Chat
  • Generative UI
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© 2026 k8o — MIT License

Typeset in Noto Sans JP & M PLUS 2

Hooks

DOM Interaction
  • useClickAway
  • useHover
  • useResize
  • useScrollDirection
  • useScrollLock
  • useWindowResize
  • useWritingMode
State & Storage
  • useClipboard
  • useControllableState
Timing
  • useDebouncedTransition
  • useDeferredDebounce
  • useInterval
  • useTimeout
Utility
  • useBreakpoint
  • useClient
  • useDisclosure
  • useStep
  • useWindowSize
Observer
  • useIntersectionObserver
  • useInView

useResize

A hook that observes element size changes via ResizeObserver.

Import

Usage

Basic Usage

Parameters

ref
Type: RefObject<T | null>
Default: -
callback
Type: (entry: ResizeObserverEntry) => void
Default: -
options.enabled
Type: boolean
Default: true
PropTypeDefault
refRefObject<T | null>-
callback(entry: ResizeObserverEntry) => void-
options.enabledbooleantrue

Return Value

void
Type: void
Default: -
PropTypeDefault
voidvoid-
import { useResize } from '@k8ordo/ui';
const [size, setSize] = useState({ width: 0, height: 0 });
const ref = useRef<HTMLDivElement>(null);

useResize(ref, (entry) => {
  const { width, height } = entry.contentRect;
  setSize({ width, height });
});

return (
  <div ref={ref}>
    <p>Width: {size.width}px</p>
    <p>Height: {size.height}px</p>
  </div>
);