Excising a tiddler with predefined field by making conditional statement in javascript

Hi @TW_Tones ,

After several attempt, I managed to solve the conditional statement see below

var excisionTitle = event.paramObject.title || this.wiki.generateNewTitle("New Excision");
switch(event.paramObject.type || "transclude") {
	   case "flashcard":
	   this.wiki.addTiddler(new $tw.Tiddler(
	   this.wiki.getCreationFields(),
this.wiki.getModificationFields(),
     {
		    title: "Answer "+excisionTitle,
            answer: operation.selection,
            tags:"flashcard",
            text: operation.selection + " [[Ref|"+editTiddlerTitle+"]]"
      }
                                      ));
       this.wiki.addTiddler(new $tw.Tiddler(
	   this.wiki.getCreationFields(),
this.wiki.getModificationFields(),
     {
		    title: "Question "+excisionTitle,
            text: "{{Answer " + excisionTitle + "||Flashcard template}} {{||Source template}}",
            answer:editTiddlerTitle,
            tags:"flashcard"
      }
                                      ));
break;

         case "transclude": 
         this.wiki.addTiddler(new $tw.Tiddler(
         this.wiki.getCreationFields(),
		 this.wiki.getModificationFields(),
     {
		    title: excisionTitle,
            text: operation.selection,
            tags: event.paramObject.tagnew === "yes" ?  [editTiddlerTitle] : []
      }
                                      ));
break;

         case "link": 
         this.wiki.addTiddler(new $tw.Tiddler(
         this.wiki.getCreationFields(),
		 this.wiki.getModificationFields(),
     {
		    title: excisionTitle,
            text: operation.selection,
            tags: event.paramObject.tagnew === "yes" ?  [editTiddlerTitle] : []
      }
                                      ));
break;
 
         case "macro": 
         this.wiki.addTiddler(new $tw.Tiddler(
         this.wiki.getCreationFields(),
		 this.wiki.getModificationFields(),
     {
		    title: excisionTitle,
            text: operation.selection,
            tags: event.paramObject.tagnew === "yes" ?  [editTiddlerTitle] : []
      }
                                      ));
break;

}

It gives a clickable flashcard option in excise menu so it will create new question and answer tiddler with predefined field and transclusion template. I will create another topic to show case how my flashcard solution works. Hope it can inspire people on making flashcard in TW.

But meanwhile I still need advice, perhaps someone can offer simplification on my code above. I need to use 4 times switch-case which makes the code ugly. Case link, case macro and case transclude has similar syntax, I think it can be simplified.