How can I use environment variables in npm scripts?

How can I use environment variables in npm scripts?

You can use environment variables in npm scripts by defining them in your package.json file or directly in the command line.

Can you give me an example of how to set an environment variable in package.json?

Sure! You can set an environment variable like this: "scripts": { "start": "MY_VAR=value node app.js" }.

What if I want to use different variables for development and production?

You can use a package like dotenv to manage different environment variables for development and production.

Is there a way to access these variables in my JavaScript code?

Yes, you can access them using process.env.VARIABLE_NAME in your JavaScript code.