NODE_ENV variable in Node.js

Question

I am a beginner in Node and I see the following code in my project:

process.env.NODE_ENV

What is NODE_ENV and how can I get access to it or change it? It seems to pick up some values but don't know from where is it getting picked up.

Please let me know.

See stackoverflow.com/a/9204973 for ways NODE_ENV can be set — Matt
– Matt, Commented Jun 9, 2016 at 14:56

Matt · Accepted Answer · 2016-06-09 15:00:53Z

4

NODE_ENV is the name of an environment variable, and you can access and change it in your shell Ex: export NODE_ENV=development , you can change it when running your process, Ex: NODE_ENV=production node application.js, or you can change it in one of your shell's configuration files.

answered Jun 9, 2016 at 15:00

Matt

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