process.env undefined in Node app

问题

When running my Node app with node server.js, process.env returns undefined, so I'm unable to access any environment variables. This also seems to occur when I attempt to deploy my app to Duostack.

Calling process.env from the command line seems to work, though:

$ node
> process.env
{ MANPATH: '/opt/local/share/man:',
  TERM_PROGRAM: 'Apple_Terminal',
...

Any idea what could be going wrong?

回答1:

I figured it out. process is an object (https://nodejs.org/api/process.html), but I'd defined my own function (also called process) that overwrote it. Changing the name of my function fixed the problem.

来源：https://stackoverflow.com/questions/5457397/process-env-undefined-in-node-app