How to set custom event
                                                                
                                                                    current style
                                                                    $(".summernote").summernote({
                                                                      onfocus : function(e) {
                                                                      // to do something
                                                                  }
                                                              });
                                                                jquery style
                                                                $(".summernote").on("summernote.focus", function(e) {
                                                                  // to do something
                                                              });
                                                                Event List
                                                                
                                                                    oninit
                                                                    $(".summernote").on("summernote.init", ...);
                                                                        onfocus
                                                                        $(".summernote").on("summernote.focus", ...);
                                                                            onenter
                                                                            $(".summernote").on("summernote.enter", ...);
                                                                                onblur
                                                                                $(".summernote").on("summernote.blur", ...);
                                                                                    onkeyup
                                                                                    $(".summernote").on("summernote.keyup", ...);
                                                                                        onkeydown
                                                                                        $(".summernote").on("summernote.keydown", ...);
                                                                                            onChange
                                                                                            $(".summernote").on("summernote.change", ...);