Deleting and replacing list elements with the splice function
Deleting and replacing list elements with the splice function
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The splice function is used to remove or replace elements in an array and
uses the following syntax:
splice ([array to modify], [offset],
[length], [list of new elements]);
The array argument is the array to be manipulated. offset is the starting
point where elements are to be removed. length is the number of elements
from the offset number to be removed. The list argument consists of an
ordered list of values to replace the removed elements with. Of course,
if the list argument is null, the elements accessed will be removed rather
than replaced.
Thus, for example, the following code will modify the @numbers list array
to include the elements, ("1" , "2", "three", "four", "5").
@numbers = ("1", "2", "3", "4", "5");
splice (@numbers, 2, 2, "three", "four");
A more common usage of the splice is simply to remove list elements by
not specifying a replacement list. For example, we might modify @numbers
to include only the elements "1", "2" and "5" by using the following code:
splice (@numbers, 2, 2);
Additional Resources:
 Adding
elements to a list array
Table of Contents
Deleting
and replacing list elements with the splice function
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