What are the best practices for using environment variables in Node.js?
The best practices include using a .env file for local development, keeping sensitive data out of your codebase, and using a library like dotenv to load environment variables.
How do I set up a .env file in my Node.js project?
To set up a .env file, create a file named .env in your project root and add your variables in the format KEY=VALUE. Then, use the dotenv package to load these variables in your application.
Can I use environment variables in my deployment process?
Yes, you can set environment variables in your deployment environment, such as Heroku or AWS, to manage configuration without hardcoding values.
What should I avoid when using environment variables?
Avoid committing your .env file to version control, exposing sensitive information, and using environment variables for non-sensitive configuration.
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