> For the complete documentation index, see [llms.txt](https://docs.flightwatching.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flightwatching.com/user-manual/designer-user-manual/edit-dashboards/dashboards/dashboard-rules/libraries.md).

# Libraries

some useful libraries are included in the IFTs. You can use it:

* [underscore](http://underscorejs.org/) to handle arrays (search, filter, sort...) :`_.groupBy(myarray, 'reg')`
* [d3](https://github.com/d3/d3-3.x-api-reference/blob/master/API-Reference.md) to access and animate your dashboard : `d3.selectAll('.dots')`
* [moment](http://momentjs.com/docs/) to handle dates: `moment.utc(mydate)`
* [jquery](http://api.jquery.com/) to navigate in the DOM structure of your dashboard (deprecated)

WILCO provides context related variables to the rules so that the dashboard is animated according to it.

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