1. DomName('SVGTextContentElement.getExtentOfChar')
  2. DocsEditable()
Rect getExtentOfChar(int charnum)

Source 

@DomName('SVGTextContentElement.getExtentOfChar')
@DocsEditable()
Rect getExtentOfChar(int charnum) => _blink.BlinkSVGTextContentElement.instance.getExtentOfChar_Callback_1_(this, charnum);