Basic question regarding variable scope

[seyan777]

Hi all!

Just a super quick question about variable scope.

local testVar = 1;
 
function testFunc()
    local testVar = testVar;
 
    print(testVar);
 
    testVar = 2;
end
 
testFunc();
 
print(testVar);

For the code snippet above, it would print 1 for both testVar.

The question is, can you change the value of outer variable even if you declare a new local variable with an outer one's name within a function? or should I prevent such circumstances if I'd like to do so?