How do I use global variables in functions?

How do I use global variables in functions?

Global variables are accessible from any function in your code. You can declare a variable outside of any function and then use it inside your functions.

Can you give me an example of how to declare a global variable?

Sure! You can declare a global variable like this: let myGlobalVar = 10; Then, you can access myGlobalVar inside any function.

What happens if I try to modify a global variable inside a function?

If you modify a global variable inside a function, the change will affect the variable globally. Just make sure to declare it as global if you're using a language that requires it.

Are there any downsides to using global variables?

Yes, using global variables can lead to code that is harder to debug and maintain, as they can be changed from anywhere in your code.