Removing Last Object From an Array

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Function RemoveLastFromArray:Object[] (arr:Object[] var)
      If arr.Length = 0 Then
         Return arr
      End If
      Local newArr:Object[] = arr[..arr.Length - 1]
      arr = newArr
      Return newArr
End Function 

        Function GetArrayLastValue:Object(arr:Object[])
	    If arr.length = 0 Then
	        Throw "Array is empty"
	    End If
	    Return arr[arr.length - 1]
	End Function