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docs: fix optional argument representation (#4732)

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Kim Brandwijk
2022-06-10 08:40:28 +02:00
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commit 4bfd89654f
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content/docs/reference-react-component.md
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@@ -507,7 +507,7 @@ There are just two of them: `setState()` and `forceUpdate()`.
### `setState()` {#setstate}
```javascript
setState(updater, [callback])
setState(updater[, callback])
```
`setState()` enqueues changes to the component state and tells React that this component and its children need to be re-rendered with the updated state. This is the primary method you use to update the user interface in response to event handlers and server responses.