When coding, variables can be a blessing or a curse. In this chapter, we'll delve into the dark side of variable scopes, where a single misplaced semicolon can turn your code into a never-ending nightmare.
Avoid the pitfalls of function scope, block scope, and scope scope (just kidding, that's not a thing... or is it?) like the plague. Don't let them turn your codebase into a spaghetti mess.