1. DomName('SVGNumberList.removeItem')
  2. DocsEditable()
Number removeItem(int index)

Source 

@DomName('SVGNumberList.removeItem')
@DocsEditable()
Number removeItem(int index) => wrap_jso(_blink.BlinkSVGNumberList.instance.removeItem_Callback_1_(unwrap_jso(this), index));