The list goes on, and we are granted amazing powers to do wonderful and sometimes incredibly stupid things whilst programming, so it's very important to keep sober-minded when attempting to harness the power of the dynamic variables.
There are no such things as public, private or protected variables: These can be simulated, but again, it's best, if you don't envisage such concepts, as they will only hinder you. Go to Closures for more information on scope.
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