I'm not sure where it is documented, but it enables you to define different
environments.
Say you want a "dev" and "prod" environment. Before you fire up your app,
you would do something like this:
$ NODE_ENV={ENV} node app.js
$ NODE_ENV=dev node app.js => dev environment
$ NODE_ENV=prod node app.js => prod environment
Then within your app, you can access this value like this:
process.env.NODE_ENV
This is especially prevalent in express where you can set different
environment configurations:
app.configure("dev", function (req, res) {
// do only dev things here
})
app.configure("prod", function (req, res) {
// do only prod things here
})
hope that helps.
dale
On Sun, Mar 18, 2012 at 1:13 PM, Peng Yu <[email protected]> wrote:
> Hi,
>
> I'm not able to find where NODE_ENV is documented and what it is for.
> Could anybody point me where the document is?
>
> Regards,
> Peng
>
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