Tim Hunter wrote: > <posted & mailed> > > Richard Dale wrote: > >> Has anyone suggested adding a 'conforms_to?' check in ruby that >>checks that an instance will respond_to? an Array of method name symbols? >> > > > Frequently. Google comp.lang.ruby for 'duck typing' and be prepared for a > lot of reading. Warning: it's a divisive topic. But well worth reading. Also search the archives for 'static typing' and 'interfaces' James