# removeEventSources

> FullCalendar v3 documentation, for an old release. Web version: https://legacy.fullcalendar.io/v3/removeEventSources
>
> Latest version (v7): https://fullcalendar.io/docs/EventSource-remove.md

Dynamically removes all event sources, or multiple specific event sources.

<div class='spec' markdown='1'>
.fullCalendar( 'removeEventSources', *optionalSourcesArray* )
</div>

If `optionalSourcesArray` is not given, **all event sources will be removed**.

The `optionalSourcesArray` parameter is an array of identifier items, which can be either an event source's id/Array/URL/Function **or** the full [Event Source Object](https://legacy.fullcalendar.io/v3/event-source-object.md).

Events from the specified sources will be immediately removed from the calendar, resulting in a single re-rendering.