Thanks for sharing your rule of thumb. I have observed that inevitably most objects/functions require three 'groups' of variables, more or less I use this patte

Thanks for sharing your rule of thumb. I have observed that inevitably most objects/functions require three 'groups' of variables, more or less I use this pattern and I would appreciate your thoughts. - Defaults: Must be defined within the object literal - User Options : part of the function arguments (user can use an object literal, anon function etc.) - Settings : The actual mixin used by the methods function aProblem(arg1, arg2, options){ // define the necessary defaults var defaults={} //define defaults // use a mixin algo to combine options and // defaults var settings = mixin(options, defaults); // main function routines var myObj={}; return myObj={ property1 : settings.property1, property2 : settings.property2 } }