Counting elements in a table

Solar2D General Questions/Discussion
#1

Sorry if this has been asked before, but if I declare a table:

local t = {}

Then give it a single value:

t.count = 28

And then add some content by index:

for i = 1, 10 do
t[I] = “some value”
end

Would I get 10 or 11 if I print it’s content.:

print(#t)

And does the first element now refer to the first “some value” or the 28.

I guess the short question would be; does assigning . property values affect the value inserted by index?

Thanks,

Matt. [import]uid: 8271 topic_id: 1846 reply_id: 301846[/import]

#2

Having tested this, it appears as though I maybe misunderstood how the table length operator works. It seems to me that it will return the last non-nil index on a 1-based indices. This means that properties assigned values without an index numeral, ie: “.count”, do not get counted, whereas entries made as “t[index] = …” do.
In short, it seems as though the example in my original post would print 10 if elements 1 to 10 had values, would also print 10 if they were all nil except element 10 and will print 10 regardless of the value of property .count
It would be great if someone could just post stating whether or not I’m correct here, please?

Many thanks,
Matt. [import]uid: 8271 topic_id: 1846 reply_id: 5468[/import]

#3

Lua is 1-based for tables and groups (which are really tables). Your example of a table filled with all nils except for element 10 would print 10. This is the way Lua works. I would suggest getting a copy of Programming in Lua. You can read more about it here: http://www.lua.org/

-Tom [import]uid: 7559 topic_id: 1846 reply_id: 6210[/import]