如何在OS X中将NODE_ENV设置为生产/开发

在运行您的应用程序之前，您可以在控制台中执行此操作，

Before running your app, you can do this in console,

export NODE_ENV=production

或者如果你在Windows中你可以试试这个：

Or if you are in windows you could try this:

SET NODE_ENV=production

或者你可以像这样运行你的应用程序：

or you can run your app like this:

NODE_ENV=production node app.js

您也可以在js文件中设置它：

You can also set it in your js file:

process.env.NODE_ENV = 'production';

但我建议不要在运行时文件中执行此操作，因为打开它并不容易服务器中的VIM并将其更改为生产。您可以在目录中创建config.json文件，每次运行应用程序时，都会从中读取并设置配置。

But I don't suggest to do it in your runtime file, since it's not easy to open up VIM in your server and change it to production. You can make a config.json file in your directory and everytime your app runs, it reads from it and sets the configuration.