SCRIPT coords.js - Polyline vertexes

forEach(ThisDrawing.PickFirstSelectionSet, function(ent) {
if (ent.EntityName != "AcDbPolyline") return;
var vv = new VBArray(ThisDrawing.Utility.CreateSafeArrayFromVector(ent.Coordinates));
var coords = vv.toArray();
//echo(coords.length);
for (i = 0; i<coords.length; i += 2)
{
  ThisDrawing.Utility.Prompt(coords[i] + "," + coords[i+1]);
}
})
function echo(msg) {ThisDrawing.Utility.Prompt(msg);}
function forEach(coll, fn) {for (var enu = new Enumerator(coll); !enu.atEnd(); enu.moveNext()) fn(enu.item());}