How to assign an empty item to an index in an object array?

Development Programming & Scripting Blueprint
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1

I want to clear the items in an array without disrupting the indices; how can I remove the assigned values ​​while keeping the indices intact? I thought I could use “Set Array Elem,” but it didn’t work for this purpose.

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2

Set array will work, but you need an ‘empty’ value. For instance -1 in an int array.

3

How do I create an empty value for an object type? If nothing is entered, the index will not be updated.

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4

You enter it with your ‘dummy’ value.

Or, another way to do this would be to use a map data type instead. That way you can have a sparse array.