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authorRob Hoelz <rob@hoelz.ro>2013-09-04 11:43:09 +0200
committerRob Hoelz <rob@hoelz.ro>2013-09-04 11:43:09 +0200
commitedea434d89049b700a58f8523fbd57590de5855d (patch)
treeab571148f24608a0c62c9a1ed3739ae393b05e84 /lua.html.markdown
parent57e0ac7e95a55ede7408a36dc7524649bbc8e4c2 (diff)
Use local variables for function examples
Currently, the example functions create variables in global scope.
Diffstat (limited to 'lua.html.markdown')
-rw-r--r--lua.html.markdown8
1 files changed, 4 insertions, 4 deletions
diff --git a/lua.html.markdown b/lua.html.markdown
index 9f9fd77b..369de908 100644
--- a/lua.html.markdown
+++ b/lua.html.markdown
@@ -210,7 +210,7 @@ f2 = {a = 2, b = 3}
metafraction = {}
function metafraction.__add(f1, f2)
- sum = {}
+ local sum = {}
sum.b = f1.b * f2.b
sum.a = f1.a * f2.b + f2.a * f1.b
return sum
@@ -273,7 +273,7 @@ eatenBy = myFavs.animal -- works! thanks, metatable
Dog = {} -- 1.
function Dog:new() -- 2.
- newObj = {sound = 'woof'} -- 3.
+ local newObj = {sound = 'woof'} -- 3.
self.__index = self -- 4.
return setmetatable(newObj, self) -- 5.
end
@@ -308,7 +308,7 @@ mrDog:makeSound() -- 'I say woof' -- 8.
LoudDog = Dog:new() -- 1.
function LoudDog:makeSound()
- s = self.sound .. ' ' -- 2.
+ local s = self.sound .. ' ' -- 2.
print(s .. s .. s)
end
@@ -329,7 +329,7 @@ seymour:makeSound() -- 'woof woof woof' -- 4.
-- If needed, a subclass's new() is like the base's:
function LoudDog:new()
- newObj = {}
+ local newObj = {}
-- set up newObj
self.__index = self
return setmetatable(newObj, self)