PICO-8 Wiki
add( table, value, [index] )
Adds a element to the end of a sequence in a table.
table
The table.

value
The value to add.

index
The index for the value to be inserted.

The add() function adds an element to a sequence in a table.

If an index is not supplied, it is assumed to be #table+1 and the value is appended to the end of the table.

The add() function returns the object being added. You can ignore this return value if you don't need it.

A stack can be easily emulated by using add(s,v) to push and v=deli(s) to pop.

Examples[]

t = {1, 5}
add(t, 7)  -- t = {1, 5, 7}
add(t, 9)  -- t = {1, 5, 7, 9}
add(t, 3, 2)  -- t = {1, 3, 5, 7, 9}

-- used to create and keep track of all players
players = {}
function new_player(pad_index, name)
  return add(players, {pad_index, name})
end

See also[]