Check out this gist, it should clarify this for you:

https://gist.github.com/f19d0e39f20a4de36f1b


On Wed, Feb 29, 2012 at 9:47 AM, Isaac Schlueter <[email protected]> wrote:

> require() is cached, yes.
>
> http://nodejs.org/api/modules.html#caching
>
> On Wed, Feb 29, 2012 at 01:23, Stefan Zehe <[email protected]> wrote:
> > hi,
> >
> > supposing that:
> >
> > var bar = function(player) {
> >    var somedata = require('./data.js');
> > }
> >
> > will every single 'new bar()' create a new disk-read and interpretation
> > of data.js's code?
> >
> > thanks in advance,
> > stefan
> >
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