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

Source 

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