1. @DomName('SVGNumberList.insertItemBefore')
  2. @DocsEditable()
Number insertItemBefore(
Number item,
int index
)

Not documented.

Source

@DomName('SVGNumberList.insertItemBefore')
@DocsEditable()
Number insertItemBefore(Number item, int index) => _blink.BlinkSVGNumberList.instance.insertItemBefore_Callback_2_(this, item, index);