To understand what is happening here, try the following
-- define func
local function func()
return 10, 11
end
-- use func
b, c = func()
print("use original func ", b, c)
-- redefine func
local func = function() end
-- use new definition of func
b, c = func()
print("use redefined func ", b, c)
From: lua-l-bounces@lists.lua.org [mailto:lua-l-bounces@lists.lua.org]
On Behalf Of Marius Booysen
Sent: 29 July 2013 13:43
To: lua-l@lists.lua.org
Subject: functions is lua
Just starting with lua and I wanted to test multiple return values from a function. I then ran into forward
declaring issues (which I still am not clear on how it works), so I ended up with this code:
#!/usr/bin/lua
local func = function() end
b, c = func()
print(b, c)
local function func()
return 10, 11
end
When I execute is, it prints nil nil for the b and c.
Do all functions need to be complete before I can call it in Lua?
Thanks!
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