Writing cleaner, more robust FeatureScript for your Onshape Custom Features

Let's jump into Onshape's FeatureScript today! A couple of tips to help you create better Custom features... Better = more robust, with more reuse of tried and tested patterns. Also, clean up your debug statements, leave "println" behind with a new Report.fs utility, hot off the press and ready to add to your toolbox.
Appearing today are:
Report custom feature: cad.onshape.co...
...with more details here:
forum.onshape....
Curve Eval custom feature:
cad.onshape.co...