DELETE FROM ARRAY

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4D v16.3

DELETE FROM ARRAY


DELETE FROM ARRAY ( array ; where {; howMany} )

Parameter	Type	Description
array	Array	Array from which to delete elements
where	Longint	Element at which to begin deletion
howMany	Longint	Number of elements to delete, or 1 element if omitted

Description

The DELETE FROM ARRAY command deletes one or more elements from array. Elements are deleted starting at the element specified by where.

The howMany parameter is the number of elements to delete. If howMany is not specified, then one element is deleted. The size of the array shrinks by howMany.

Example 1

The following example deletes three elements, starting at element 5:

DELETE FROM ARRAY(anArray;5;3)

Example 2

The following example deletes the last element from an array, if it exists:

 $vlElem:=Size of array(anArray)

 If($vlElem>0)

    DELETE FROM ARRAY(anArray;$vlElem)

 End if