# Interface: EventOptionsObject

## Highcharts. EventOptionsObject

The event options for adding function callback.

### Members

#### order :number

  The order the event handler should be called. This opens for having one handler be called before another, independent of in which order they were added.

  ##### Type:

  - number

#### passive :boolean

  Whether an event should be passive or not. When set to `true`, the function specified by listener will never call `preventDefault()`.

  ##### Type:

  - boolean