scopes and prototypes are indeed different. By 'similar' I meant that they share an important quality in common, like two triangles are similar if they have the same angles, irrespective of size or rotation.
I agree, in other respects they are completely different, which is why it's useful to have both. prehaps i should have put it differently, "prototypes chains and closure stacks both override properties in a similar way" ? cheers, Dominic On Thu, Jun 21, 2012 at 2:32 PM, Rick Waldron <[email protected]> wrote: > > On Wednesday, June 20, 2012 at 10:15 PM, Dominic Tarr wrote: > > prototype chains and closure scopes actually work in a precisely similar > way. > > > This is egregiously incorrect. Before you give out advice, I beg you to read > the spec and actually understand the material. > > > this gist gives some examples of identical structures created with > scopes and prototypes. > > > The only thing they share in common is that they result in some property > being assigned with some value on some object (in one case explicitly, the > other implicitly) - their semantics are like night and day. A prototype > definition is an object that exists exactly once in memory and is shared by > bound referrence and resolved via upward lookup. A scope is an execution > context representable by an object (eg |this|) > > Rick > > > > > https://gist.github.com/2904285 > > > On Thu, Jun 21, 2012 at 7:34 AM, P. Douglas Reeder <[email protected]> > wrote: > > Use the style that your team find most natural for the problem you're > solving. That will make it easier to fix bugs and add enhancements. > > If profiling shows one part of your app is the bottleneck, consider > rewriting it. > > Other problems may make other styles more appropriate. > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en
