How would I check if an EntityGroup is loaded? How would I unload/destory an EntityGroup?

I'm trying to remove an EntityGroup, and it works for the most part but sometimes I still see it.

I got this from one of the MatchThree examples

Code (JavaScript):

1.  
2. let entity = this.world.getEntityByName(name);
3. if (this.world.exists(entity)) {
4.       ut.Core2D.TransformService.destroyTree(this.world, entity);
5.        ut.EntityGroup.destroyAll(this.world, "game." + name);
6.         //ut.Tweens.TweenService.removeAllTweensInWorld(this.world);
7. }
8.  

(not sure what tweens do but works the same with/without)

I instantiate like so

Code (JavaScript):

1.  
2. public spawnGroup(name:string){
3.             // spawn the Result
4.             //entities.game.Menu.load(this.world);
5.             ut.EntityGroup.instantiate(this.world, "game." + name);
6. }

What are the differences between instantiate and load?


I'm trying to see if I actually destroy these Entity Groups but I dont know how to check if they are loaded.
Is there a better way of destroying EntityGroups?

 

Also Is there a way to see all the code functions and stuff? I'm using visual studio and usually when I do "ut.EntityGroup." after the "." it would show all the possibilities, but for typescript it isn't working.

There really isn't enough documentation for Tiny so it's really hard for me to figure things out :/