table

Links

PIL: Part II · Tables and Objects
table.concat - Concatenates table items together into a string
table.foreach - Applies a function to each item in a table
table.foreachi - Applies a function to each item in a numerically-keyed table
table.getn - Returns the size of a numerically-keyed table
table.insert - Inserts a new item into a numerically-keyed table
table.maxn - Returns the highest numeric key in the table
table.remove - Removes an item from a numerically-keyed table
table.setn - Sets the size of a table (http://www.gammon.com.au/scripts/doc.phpobsolete)
table.sort - Sorts a table
Metatables

Snippets

-- Sample definition.
tbl = {
  top_left = {
    x = 1,
    y = 2, -- trailing comma is allowed
  },
  bot_right = {
    x = 10,
    y = 20, -- trailing comma is allowed
  }, -- trailing comma is allowed
}