Yes, each time you enter a conditional block, do-block, or loop, you can declare variables that will go out of scope at the end of that block. Bonus fact: the iteration variables in for loops in lua go out of scope between iterations of the loop.
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If you are familiar with _javascript_, I believe this is the same as _javascript_'s let and const, and Python's behavior is the same as _javascript_'s var.
thank you very much for pointing that out - I was mislead by the reference manual which discuss scopes by using only do...end statements - in fact I was under the impression that scopes were created only at the function definition (kind of _javascript_'s var) and at do...end blocks (kind of curly braces in other languages).
Now forgive me for asking this, even if I am a programmer I am not a Computer Science Engineer. My question is: why are new scopes created by "if", "for" and other statements and not only by function definitions and do...end statements? If one wanted a new scope one could easily type "do" (as in other languages we just open a curly brace). So why this is done implicitly? What is the advantage or the theoretical reason? Again forgive me for this maybe silly question - remember my background is not in computer science.
