k8ordo
  • UI
  • Form
  • State
  • Router
  • Static
  • Server
Switch to dark mode
  • Get Started
  • Theming
  • i18n
  • Components
  • Hooks
  • Helpers
  • AI
Open navigation
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

useInView

A hook that returns whether an element is currently visible in the viewport.

Import

Usage

Basic Usage

Not visible

Parameters

ref
Type: RefObject<T | null>
Default: -
options.threshold
Type: number|number[]
Default: 0
options.root
Type: Element|null
Default: null
options.rootMargin
Type: string
Default: '0px'
options.once
Type: boolean
Default: false
PropTypeDefault
refRefObject<T | null>-
options.thresholdnumber|number[]0
options.rootElement|nullnull
options.rootMarginstring'0px'
options.oncebooleanfalse

Return Value

isInView
Type: boolean
Default: -
PropTypeDefault
isInViewboolean-
import { useInView } from '@k8ordo/ui';
const ref = useRef<HTMLDivElement>(null);
const isInView = useInView(ref, { threshold: 0.5 });

return (
  <div ref={ref}>
    {isInView ? 'Visible' : 'Not visible'}
  </div>
);