# brushStart

CustomEvent.detail type: CartesianBrushStartEventDetail. Event names are case-sensitive.

Canonical: https://chart.syidax.com/docs/events/brushStart/

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## Definition

Event name: `brushStart`. Names are case-sensitive. Read the payload from `detail` on `CustomEvent<CartesianBrushStartEventDetail>`.

```javascript
chart.addEventListener('brushStart', event => {
  console.log(event.detail); // CartesianBrushStartEventDetail
});
```

- [CartesianBrushStartEventDetail](https://chart.syidax.com/docs/types/CartesianBrushStartEventDetail.md) — Type definition

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## Related charts

- [sy-line-chart](https://chart.syidax.com/docs/components/line.md#event-brushStart)
- [sy-area-chart](https://chart.syidax.com/docs/components/area.md#event-brushStart)
- [sy-column-chart](https://chart.syidax.com/docs/components/column.md#event-brushStart)
- [sy-bar-chart](https://chart.syidax.com/docs/components/bar.md#event-brushStart)
- [sy-scatter-chart](https://chart.syidax.com/docs/components/scatter.md#event-brushStart)