--- meta: title: useInView | React Spring 'og:title': useInView | React Spring 'twitter:title': useInView | React Spring description: API documentation for the useInView utility hook in React Spring. 'og:description': API documentation for the useInView utility hook in React Spring. 'twitter:description': API documentation for the useInView utility hook in React Spring. 'og:url': https://www.react-spring.dev/docs/utilities/use-in-view 'twitter:url': https://www.react-spring.dev/docs/utilities/use-in-view sidebar_position: 5 isNew: true --- import { formatFrontmatterToRemixMeta } from '../helpers/meta' export const meta = formatFrontmatterToRemixMeta(frontmatter) # useInView A helpful utility hook tracking the visibility of an element in the viewport. Using the native [`IntersectionObserver`](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API), you can respond either to a `boolean` signifying that the element has "intersected" or instead pass it a function returning `SpringValues` to animate the element upon `intersection`. ## Usage ### Passing nothing or an object Not passing a function as the first argument the hook therefore assumes you're passing arguments to intialize the `IntersectionObserver`. If you do pass a function, this argument becomes the second expected (see below). ```tsx import { useInView, animated } from '@react-spring/web' function MyComponent() { const [ref, inView] = useInView() return {inView ? 'Hello World' : null} } ``` ### Passing a function :::warning You must use the `to` and `from` prop to define your animation when returning it from the function. Passing regular props that typically "become" `SpringValues` will not work. ::: ```tsx import { useInView, animated } from '@react-spring/web' function MyComponent() { const [ref, springs] = useInView( () => ({ from: { opacity: 0, y: 100, }, to: { opacity: 1, y: 0, }, }), { rootMargin: '-40% 0%', } ) return ( Hello World ) } ``` ## References import { TablesConfiguration } from '../components/Tables/TablesConfig' import { DEFAULT_CONFIG_DATA, USE_INVIEW_INTERSECTION_ARGS, } from '../data/fixtures' ### IntersectionArgs The below table describes the `IntersectionArgs` object the hook accepts. ### SpringProps The reference below describes the return value of the optional function argument. cell[0]?.label !== 'ref')} /> ## Typescript ```tsx interface IntersectionArgs extends Omit { root?: React.MutableRefObject once?: boolean amount?: 'any' | 'all' | number | number[] } function useInView( args?: IntersectionArgs ): [ref: RefObject, isInView: boolean] function useInView( props: () => Props & Valid>, args?: IntersectionArgs ): [ref: RefObject, springs: SpringValues] ``` Where `ConfigObject` is described [above](#reference) ## Examples import { ExampleGrid } from '../components/Grids/ExampleGrid' Can't find what you're looking for? Check out all our [examples!](/examples)