react-spring/docs/app/routes/docs.components.use-transition.mdx

---
meta:
  title: useTransition | React Spring
  'og:title': useTransition | React Spring
  'twitter:title': useTransition | React Spring
  description: API documentation for the useTransition hook in React Spring.
  'og:description': API documentation for the useTransition hook in React Spring.
  'twitter:description': API documentation for the useTransition hook in React Spring.
  'og:url': https://www.react-spring.dev/docs/components/use-transition
  'twitter:url': https://www.react-spring.dev/docs/components/use-transition
sidebar_position: 4
---

import { formatFrontmatterToRemixMeta } from '../helpers/meta'

export const meta = formatFrontmatterToRemixMeta(frontmatter)

# useTransition

This hook is best suited for animating in & out datasets or items you don't particularly
want to be left in the DOM, e.g. a dialog.

## Usage

`useTransition` depends on an `array` of data. That data can be anything you want, we
use a lot of internals to track each datum including inferring the keys, this is the
first argument. The second is a config object, which is different to
[`useSpring`](/docs/components/use-spring) or [`useSprings`](/docs/components/use-springs) so take note!

### With a function & deps

```jsx lines=1,4-8,10-12
import { useTransition, animated } from '@react-spring/web'

function MyComponent({ data = [1, 2, 3] }) {
  const [transitions, api] = useTransition(data, () => ({
    from: { opacity: 0 },
    enter: { opacity: 1 },
    leave: { opacity: 1 },
  }))

  return transitions((style, item) => (
    <animated.div style={style}>{item}</animated.div>
  ))
}
```

### With a config object

```jsx lines=1,4-8,10-12
import { useTransition, animated } from '@react-spring/web'

function MyComponent({ data = [1, 2, 3] }) {
  const transitions = useTransition(data, {
    from: { opacity: 0 },
    enter: { opacity: 1 },
    leave: { opacity: 1 },
  })

  return transitions((style, item) => (
    <animated.div style={style}>{item}</animated.div>
  ))
}
```

### Transition function

The transition function takes a `render` function as an argument. This is how we append `keys`.
From the example above you can see we pass a `style` argument to the function, this `style` object
relates to the state of the animation, e.g. if the animation is `ENTERING` then the we use the
keys from the `enter` property of of your config object. For a deeper dive into the function
signature see the [`Typescript`](#typescript) section.

## Reference

`Item` is defined a lot below, it's automatically inferred from what you pass as the
content of the array you pass as the first argument to the hook. Therefore, if you
passed `[1, 2, 3]` then `Item` would be `number`.

import { TablesConfiguration } from '../components/Tables/TablesConfig'
import { TRANSITION_CONFIG_DATA } from '../data/fixtures'

<TablesConfiguration data={TRANSITION_CONFIG_DATA} />

## Typescript

```tsx
function useTransition<Item extends any>(
  data: Item[],
  configuration: ConfigObject
): TransitionFn<Item>

function useTransition<Item extends any>(
  data: Item[],
  configurationFn: () => ConfigObject
  deps?: any[]
): [transition: TransitionFn<Item>, api: SpringRef]

type TransitionFn = (
  style: SpringValues,
  item: Item,
  transitionState: TransitionState<Item>,
  index: number
) => ReactNode
```

Where `ConfigObject` is described [above](#reference)

### TS Glossary

- [`TransitionState`](/docs/typescript#transitionstate)

## Examples

import { ExampleGrid } from '../components/Grids/ExampleGrid'

<ExampleGrid
  sandboxTitles={[
    'Basic Transition',
    'Chaining Transition and a Spring',
    'Exit Before Enter',
    'Image Fade',
    'List Reordering',
    'Masonry Grid',
    'Multistage Transitions',
    'Notification Hub',
  ]}
/>

Can't find what you're looking for? Check out all our [examples!](/examples)