The Complete React Developer Course (with Hooks and Redux) - Heroku Environment Variables

What is the purpose of using environment variables in production?

Describe the process to set up environment variables using the Heroku command line interface.

How do you verify that the environment variables have been set correctly in Heroku?

What command would you use to remove an environment variable in Heroku?

Explain the significance of the .env files in the context of development and testing.

What steps should be taken to ensure sensitive information is not pushed to GitHub?

What role does the define plugin play in the webpack configuration?