# Integrate in React

- Human documentation: [https://docs.univer.ai/guides/bases/getting-started/integrations/react](https://docs.univer.ai/guides/bases/getting-started/integrations/react)

- Agent Markdown: [https://docs.univer.ai/guides/bases/getting-started/integrations/react.md](https://docs.univer.ai/guides/bases/getting-started/integrations/react.md)

- Requested language: `en-US`

- Content language: `en-US`

- Documentation version: `1.0.3`

- Source: [bases/getting-started/integrations/react.mdx](https://github.com/dream-num/documentation/blob/dev/content/guides/bases/getting-started/integrations/react.mdx)

---

Start with [installation and basic usage](https://docs.univer.ai/guides/bases/getting-started/installation.md). This example uses React to mount Univer Bases in a container with an explicit height.

### Integration Steps

1. Initialize Univer in `useEffect`.
2. Dispose of Univer in `useEffect cleanup`.

### Example

Each mount uses its own child container. Disposal runs in a microtask after the surrounding React cleanup, so nested React roots are not unmounted synchronously during a React commit.

```tsx
import { useEffect, useRef } from 'react'
import { UniverBasesPlugin } from '@univerjs-pro/bases'
import { UniverBasesUIPlugin } from '@univerjs-pro/bases-ui'
import BasesUIenUS from '@univerjs-pro/bases-ui/locale/en-US'
import BasesenUS from '@univerjs-pro/bases/locale/en-US'
import { UniverProFormulaEnginePlugin } from '@univerjs-pro/engine-formula'
import { UniverLicensePlugin } from '@univerjs-pro/license'
import { LocaleType, mergeLocales, Univer, UniverInstanceType } from '@univerjs/core'
import DesignenUS from '@univerjs/design/locale/en-US'
import { UniverRenderEnginePlugin } from '@univerjs/engine-render'
import { UniverUIPlugin } from '@univerjs/ui'
import UIenUS from '@univerjs/ui/locale/en-US'

import '@univerjs/design/lib/index.css'
import '@univerjs/ui/lib/index.css'
import '@univerjs-pro/bases-ui/lib/index.css'

export function UniverEditor() {
  const containerRef = useRef<HTMLDivElement>(null)

  useEffect(() => {
    const host = containerRef.current
    if (!host) return
    const container = document.createElement('div')
    container.style.height = '100%'
    host.append(container)

    const univer = new Univer({
      locale: LocaleType.EN_US,
      locales: {
        [LocaleType.EN_US]: mergeLocales(
          DesignenUS,
          UIenUS,
          BasesenUS,
          BasesUIenUS,
        ),
      },
    })

    univer.registerPlugin(UniverLicensePlugin, {
      license: 'your license.txt',
    })
    univer.registerPlugin(UniverRenderEnginePlugin)
    univer.registerPlugin(UniverUIPlugin, { container })

    univer.registerPlugin(UniverProFormulaEnginePlugin)
    univer.registerPlugin(UniverBasesPlugin)
    univer.registerPlugin(UniverBasesUIPlugin)

    univer.createUnit(UniverInstanceType.UNIVER_BASE, {})

    return () => {
      queueMicrotask(() => {
        univer.dispose()
        container.remove()
      })
    }
  }, [])

  return <div ref={containerRef} style={{ height: 600 }} />
}
```