Removing index from an array- do the rest shift down?

Hello - Simple question about arrays here.

If I have an array with 3 indexes in it (0, 1 and 2) and a blueprint removes index 1, does the value in index 2 now become index 1? Or would referencing .index 1 return an error?

Sorry that’s a little hard to put into words for this non-programmer.

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in the array [5, 8, 3], if you remove index 1 (meaning remove Item at index 1), your array become [5, 3].

So if you referencing now index 1 you get value “3”.