Lua How to insert multiple arrays into a pre-existing table

[Xikini]

Pre-Existing Table.

local t = {
   a = {},
   b = {},
   c = {}
}

How it will look, when I add information into the table..

local t = {
   a = {value = {{x, y}, {x, y}, {x, y}}, value2 = {{x, y}, {x, y}, {x, y}}, value3 = {{x, y}, {x, y}, {x, y}} },
   b = {},
   c = {}
}

But how do I add the information into the table?

The original value I can add in like this..

t.a.value = {x, y}

Which I think would make the table look like this..

local t = {
   a = {value = {{x, y}} },
   b = {},
   c = {}
}

But how do I add additional "{x, y}" 's into that pre-existing array.. without deleteing the previous array?

Do I use table.insert..?

if not t.a.value then
   t.a.value = {x, y}
else
   table.insert(t.a.value, {x, y})
end

This seems right.. but just trying to wrap my head around it.

If someone can say Aye or Nay, with a small explanation.. That'd be really helpful.

Thanks!

Xikini

 

[Homeslice]

t.a.value = {x, y}

.value holds an array {x,y} intially, but you also want it to hold an array of multiple {x,y}'s later. It can only do one.

The way you add the initial value is the problem

--Adding original Value
t.a.value = {x, y}
--should be
t.a.value = {}
t.a.value[#t.a.value+1] = {x,y}

you can also use table.insert instead of t.a[#t.a.value+1].
I am used to that way (next free index place new array /w x,y)