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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
  • AI Agents
  • Storybook
Resources
  • GitHub
  • npm

© 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

useWritingMode

A hook that observes an element's writing-mode and returns either horizontal or vertical.

Import

Usage

Basic Usage

Parameters

ref
Type: RefObject<Element | null>
Default: -
PropTypeDefault
refRefObject<Element | null>-

Return Value

writingMode
Type: 'horizontal'|'vertical'
Default: -
PropTypeDefault
writingMode'horizontal'|'vertical'-
import { useWritingMode } from '@k8ordo/ui';
const ref = useRef<HTMLDivElement>(null);
const writingMode = useWritingMode(ref);

return (
  <div ref={ref}>
    {writingMode === 'vertical' ? '縦書き' : '横書き'}
  </div>
);