method setBaseAndExtent

Source

@DomName('Selection.setBaseAndExtent')
@DocsEditable()
@Experimental() // non-standard
void setBaseAndExtent(
        Node baseNode, int baseOffset, Node extentNode, int extentOffset) =>
    _blink.BlinkSelection.instance.setBaseAndExtent_Callback_4_(
        this, baseNode, baseOffset, extentNode, extentOffset);