How to go from simple working code to professional code

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Originally Posted by Boydean

EDIT: Global variables are bad. Don't use them.

I realize that statement was made in the context of FRC and LabVIEW, but in case a reader might think it is a universal principle it should be noted that there are contexts in which it is not true.

Global variables are often indispensable for software for high-volume automotive applications with penny-pinching hardware. If managed meticulously, they can be essential for a successful product.