How do different programming languages handle environment variables?

How do different programming languages handle environment variables?

Different programming languages have their own methods for accessing environment variables. For example, in Python, you can use the os module to access them, while in Node.js, you can use process.env.

Can you give me an example in Python?

Sure! In Python, you can access an environment variable like this:

import os
my_var = os.getenv('MY_VARIABLE')
print(my_var)

What about in JavaScript?

In JavaScript, particularly in a Node.js environment, you can access environment variables using:

const myVar = process.env.MY_VARIABLE;
console.log(myVar);

Are there any differences in how they are set?

Yes, the way you set environment variables can differ. In Unix-based systems, you can set them in the terminal like this:

export MY_VARIABLE=value

In Windows, you can set them using:

set MY_VARIABLE=value