index
The read-only index
property of the HTMLOptionElement interface specifies the 0-based index of the element; that is, the position of the option within the list of options it belongs to, in tree-order, as an integer.
The read-only index
property of the HTMLOptionElement interface specifies the 0-based index of the element; that is, the position of the option within the list of options it belongs to, in tree-order, as an integer.