1. @DomName('HTMLSelectElement.namedItem')
  2. @DocsEditable()
OptionElement namedItem(String name)

Source 

@DomName('HTMLSelectElement.namedItem')
@DocsEditable()
OptionElement namedItem(String name) =>
    _blink.BlinkHTMLSelectElement.instance.namedItem_Callback_1_(this, name);