Is there any module to fill a ring polygon ?

I know the turf.mask() function can make a unmasked polygon to a ring polygon with holes. But conversely, if I want to fill the ring polygon, and get the unmasked polygon, is there any module help me to resolve this problem.

http://geojson.io/#id=gist:anonymous/ae1ca487f5bc83e8e14dac39b2a20c82&map=3/-26.98/130.00

[rowanwins]

Ah so if I understand correctly you want to remove the holes from the polygon. Short answer is no there is nothing available.

If you’re just dealing with polygons (and not MultiPolygons) you should be able to do something like

   orig.geometry.coordinates.splice(1, orig.geometry.coordinates[0].length - 1)

This will leave you will the outer geometry and delete any holes

[ffflabs]

Actually you could do it with multipolígons too by playing with CCW and using the ring directions to determine they are holes.