The length property of the HTMLOptionsCollection interface returns the number of
The selectedIndex property of the HTMLOptionsCollection interface is the numeric index of the first selected
The add() method of the HTMLOptionsCollection interface adds an HTMLOptionElement or HTMLOptGroupElement to this HTMLOptionsCollection.
Optionalbefore: number | HTMLElementThe HTMLCollection method item() returns the element located at the specified offset into the collection.
The remove() method of the HTMLOptionsCollection interface removes the
The
HTMLOptionsCollectioninterface represents a collection ofMDN Reference