From: Dan Sugalski [mailto:[EMAIL PROTECTED]] > At 9:51 AM -0800 1/14/03, Jonathan Sillito wrote: > > > >Below are some questions about this ... > > And now some answers. :) > > >> From: Dan Sugalski [mailto:[EMAIL PROTECTED]] > > > >[snip] > > > >> Objects, as far as I see it, have the following properties: > >> > >> 1) They have runtime-assignable properties > > > >Terminology question: what is the difference between a > >property and an attribute? Perhaps the answer could go in > >the glossary. > > A property is a runtime assignable name/value pair that you stick on > a variable or value. An attribute is a named variable that all > objects of a particular class have.
For a while perl6-language was using both terms for the runtime variable/value name/value tag. This stems from Perl 5.6's attributes and Attribute::Handlers modules. But in Perl6 s/attributes/properties/ because properties have nothing to do with OO, whereas 'attribute' has the "object/class data-member" meaning in OO. > Properties can come and go at runtime, but attributes are fixed. (I > think you could also consider attributes "instance variables", but > I'm a bit OO fuzzy so I'm not sure that's entirely right) Both classes and objects can have attributes. No runtime modification of class and/or object attributes... :( -- Garrett Goebel IS Development Specialist ScriptPro Direct: 913.403.5261 5828 Reeds Road Main: 913.384.1008 Mission, KS 66202 Fax: 913.384.2180 www.scriptpro.com [EMAIL PROTECTED]
