I also wondered how node re-point the "exports" reference, could you
explain it for me? Does not something like var module = {exports: {}}, if
change exports, why module.exports can't update?
在 2012年1月10日星期二UTC+8上午2时45分26秒，ryandesign写道：
>
>
> On Jan 9, 2012, at 07:34, mscdex wrote:
>
> >> BTW What is the main difference between exports and module.exports?
> >
> > exports === module.exports
>
> I had wondered this as well, and eventually reached this conclusion too:
> node must be doing the equivalent of "var exports = module.exports" to
> create the exports reference. It was very confusing to me to see some
> example code doing things with "exports.something" and other code doing
> things with "module.exports". I never saw any code doing anything with
> "module.exports.something" and I now assume this this would in fact work
> fine but nobody does it because it is seven characters shorter to type
> "exports" than "module.exports". But when overriding the entire exports
> object, just setting "exports" would not work, because that would re-point
> the "exports" reference instead of updating the real "module.exports"
> object. I never saw it explained in this way in any documentation, and it
> would have helped me understand quicker.
>
>
> > Setting `module.exports` would allow you to overwrite the default
> > `exports` object with whatever you want so that that would get
> > returned by require() instead of an object. This way you could do
>
>
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