1. @DomName('HTMLFormControlsCollection.item')
  2. @DocsEditable()
  3. @Experimental()
Node item(int index)

Source 

@DomName('HTMLFormControlsCollection.item')
@DocsEditable()
@Experimental() // untriaged
Node item(int index) => _blink.BlinkHTMLFormControlsCollection.instance
    .item_Callback_1_(this, index);