Elements can be deleted by iterating to them and then assigning .NULL to the element using the .REF($$i) function, as in the following example which deletes the element whose value is "something."
foreach $$i in $m()
if $$i = "something" then
$m(.REF($$i)) = .NULL ! delete the element
exit ! always exit foreach loop
endif ! after removing an element, as it
next $$i ! may invalidate the iterator
In addition, you can use the following dot-statements to delete:
.POPFRONT $m() ! delete first element
.POPBACK $m() ! delete last element
Note that deleting an element will also delete any sublist attached to it.
See Also
| • | Sublist Operations for details on deleting sublists |
