Re: Embedded 'nil' values - a suggestion
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- Subject: Re: Embedded 'nil' values - a suggestion
- From: PA <petite.abeille@...>
- Date: Tue, 7 Mar 2006 19:55:15 +0100
On Mar 07, 2006, at 17:48, Gavin Kistner wrote:
I've added this information to
http://lua-users.org/wiki/MigratingToFiveOne
under "Using vararg expressions rather than 'arg'"
In addition, you might want to consider using table.maxn() when
unpacking multiple return values:
function test()
return "a", nil, "b", nil
end
local someResults = { test() }
print( "#", #someResults, unpack( someResults ) )
print( "maxn", table.maxn( someResults ), unpack( someResults, 1,
table.maxn( someResults ) ) )
> # 1 a
> maxn 3 a nil b
Not perfect as one doesn't seem to be able to catch the very last nil
value, but good enough for all practical purposes :)
Cheers
--
PA, Onnay Equitursay
http://alt.textdrive.com/