Module Bag
Class for a bag.
This is an open structure, to make it easilly extensible. That is, the queue can be abused by manipulating it as an ordinary table. Items can be added to a bag, but not removed. See also Wikipedias page on multiset.
Functions
| bag.new () | Create a new instance. |
| bag:add () | Add an item to the bag. |
| bag:find () | Find an item in the bag. |
| bag:isEmpty () | Is the bag empty. |
| bag:count () | Count number of entries in bag. |
Functions
- bag.new ()
-
Create a new instance.
Parameters:
- ... vararg arguments to be passed on
Returns:
self - bag:add ()
-
Add an item to the bag.
This method can be called as a function.
Parameters:
- item any
Returns:
self - bag:find ()
-
Find an item in the bag.
There might be several items.
Equality is shallow.
This method can be called as a function.
Nicknames:
-
has
Parameters:
- item any
Returns:
any - bag:isEmpty ()
-
Is the bag empty.
Checks by counting items whether bag is empty.
This method can be called as a function.
Returns:
boolean - bag:count ()
-
Count number of entries in bag.
This method can be called as a function.
Returns:
number