Rectangle Layer

[JasonSanford]

Just getting started here with a debug page. If I get good feedback I can add to build scripts and documentation.

See debug/map/rectangle.html (probably should be in the vector directory, oops!)

[mourner]

Awesome! It also needs setBounds (similar to Polygon#setLatLngs) to update the rectangle dynamically, otherwise perfect!

[JasonSanford]

ok, I think this is done. Do you typically do any kind of checking to see if the user passed a proper object type

if (latLngBounds && latLngBounds instanceof L.LatLngBounds) { ...

or just trust that they passed the proper items?

[mourner]

I mostly don't do checking, because if I did this everywhere it can be added, Leaflet would be 1.5 times bigger in size. JS is not a good language to do strict checking, so this is only done in special cases (that often confuse people).

You now have some repetition in your code, I'd suggest moving latlngs creation to one private method, e.g. _boundsToLatLngs(bounds) -> Array, and call it both in constructor and setBounds.