Module Stack
Class for a stack.
This is an open structure, to make it easilly extensible. That is, the stack can be abused by manipulating it as an ordinary table. Items can be added to one end of a queue, and later removed from the same end. See also Wikipedias page on stack.
Functions
| stack.new () | Create a new instance. |
| stack:push () | Push an item on the stack. |
| stack:pop () | Pop an item off the stack. |
| stack:isEmpty () | Is the stack empty. |
| stack:count () | Count number of entries in stack. |
Functions
- stack.new ()
-
Create a new instance.
Parameters:
- ... vararg arguments to be passed on
Returns:
self - stack:push ()
-
Push an item on the stack.
This method can be called as a function.
Parameters:
- item any
Returns:
self - stack:pop ()
-
Pop an item off the stack.
This method can be called as a function.
Nicknames:
-
drop
Returns:
any - stack:isEmpty ()
-
Is the stack empty.
Checks by counting items whether stack is empty.
This method can be called as a function.
Returns:
boolean - stack:count ()
-
Count number of entries in stack.
This method can be called as a function.
Returns:
number