From TableLibraryTutorial of lua-users.org. table.remove(table [, pos]) tremove(table[, pos]) Remove an element from a table. If a position is specified the element at that the position is removed. The remaining elements are reindexed sequentially and the size of the table is updated to reflect the change. The element removed is returned by this function. E.g., If no position is given remove the last element in the table which is specified by the size of the table. E.g., If the size of the table does not reflect the number of elements nothing is removed, e.g.,