How to destroy an object on Javascript from a class

Question

Ok I have this object from class

//Classes for actors ingame
//Runtime actors 
class Actor 
{
    //public ActorHealth = 100; 

    constructor(name, x, y, team, mainTexture, InternalTexture, ActorHealth, ActorState ) 
    {
        this.name = name;
        this.x = x; 
        this.y = y;
        this.team = team; //Team 1 Players/hero  Team 2 Enemies
        this.mainTexture = mainTexture;//"BloodForWebGladiators1.png"; 
        this.InternalTexture=new Image();
        this.InternalTexture.setAttribute("src", this.mainTexture);  
        this.ActorHealth = 100;     
        this.ActorState = "Alive"; //"Alive" is alive, "Dead" is dead
    }
 
    //Set location for character sprite
    setLocation(px, py) 
    {
        this.x = px; 
        this.y = py;
    }
    
    //WIP
    ActorTakeDamage(DamageAmount)
    {
        this.ActorHealth -= DamageAmount; 
        console.log("FROM Actor taking damage now health is"+this.ActorHealth ); 
        
        if( this.ActorHealth <= 0 && this.ActorState == "Alive" ) 
        {
            this.ActorDie(); 
        }
        
        spawnActor('PlayerBloodParticle', this.x, this.y, 1, "BloodForWebGladiators1.png", "Particle");   //actor 0  
    }
  
    ActorDie()
    {
        console.log("FROM Actor DYING is"+this.ActorHealth );   
        //this.DestroySelf()
        this.ActorSetActorState("Dead");
        this.InternalTexture.setAttribute("src", "GWArcherLoadingArrowDead.png");
        setInterval(this.DestroySelf.bind(this),3000.0); //Find a way to clear the timer
    }
  
    ActorSetActorState(NewActorState)
    {
        this.ActorState = NewActorState; 
        
    }
  
    ActorTick()
    {
        //TestFunction(); 
        if( DoesCollideXYWithXY(this.x, this.y, player_x, player_y, 2, 2 ) )
        {
            this.CollideOverlap();
        }
    }  
  
    CollideOverlap()
    {

    }
 
    DestroySelf()
    {
        DestroySpecificActorOfTheWorld(this); 
    } 
}

As you can see it gets destroyed, all it does its remove self from specific actor from array, but how to actually erase it totally from the memory?????????