# handleWindowResize

> FullCalendar v5 documentation, for an old release. Web version: https://legacy.fullcalendar.io/v5/handleWindowResize
>
> Upgrading to v7: https://fullcalendar.io/docs/upgrading-from-v6.md

Whether to automatically resize the calendar when the browser window resizes.

<div class='spec' markdown='1'>
Boolean, *default*: `true`
</div>

If `true`, the calendar will automatically resize when the window resizes, and the [windowResize](https://legacy.fullcalendar.io/v5/windowResize.md) callback will be called. If `false`, none of this will happen.