WoW:Lua variable scoping: Difference between revisions

WoW:Lua variable scoping (source)

28 bytes added , 14 November 2007

m

Anonymous user

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     function foo(n)             -- In comments, assuming parameter n = 1
        p(n);                    -- Prints 1
-       local n = n + 1;         -- Creates a new "n" in block scope, equal to 2
+       local n = n + 1;         -- Creates a new n in block scope, equal to n + 1
        p(n);                    -- Prints 2
        if (true) then           -- Entering a new code block
           p(n);                 -- Prints 2
-          local n = 15;         -- Creates a more local "n," now
+          local n = 15;         -- Creates a more local n, now
           p(n);                 -- Prints 15
-          for x = 1, 10 do      -- Note x is also a local variable now, not accessible outside for block
+          for x = 1, 10 do      -- Note x is implicitly declared as a local variable now, it is not accessible outside the for block
              -- Note each iteration is a separate block!
              p(n);              -- Prints 15 EVERY TIME (even on 2nd+ loop)