1. DomName('SVGLengthList.appendItem')
  2. DocsEditable()
Length appendItem(Length newItem)

Source 

@DomName('SVGLengthList.appendItem')
@DocsEditable()
Length appendItem(Length newItem) => _blink.BlinkSVGLengthList.instance.appendItem_Callback_1_(this, newItem);