RE: how to get the field names for a table
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- Subject: RE: how to get the field names for a table
- From: "Ashley Fryer" <lua@...>
- Date: Tue, 6 Mar 2001 16:21:17 -0800
Here's one way to do what you want.
Regards,
ashley
----
function get_field_names(t)
local names = {}
local i,v=next(t,nil)
while i do
tinsert(names,i)
i,v=next(t,i)
end
return names
end
>color = { red = 1, green = 5, blue = 6 }
>names = get_field_names( color )
>print(names[1],names[2],names[3])
green red blue
> -----Original Message-----
> From: Honglei Tu
> Sent: Tuesday, March 06, 2001 3:47 PM
> Subject: how to get the field names for a table
>
> If I have a Lua table which is
> color["red" = 1 "green" =5 "blue" =6].
> I wonder how to get the field names and put them
> in a set. I want to get ["red" "green" "blue"].
> I will write a Lua function to get them.
> But is there any way to do that ?
>