Turf is a great companion to web maps (leaflet, mapbox, libremap, etc) and PostGIS. Sometimes it’s just easier and better to do some calculations on the client

Turf is a great companion to web maps (leaflet, mapbox, libremap, etc) and PostGIS. Sometimes it’s just easier and better to do some calculations on the client side rather than using some complex SQL to do it (and the extra work of having an endpoint to return the data from PostGIS).