Loop through and remove display objects when change scene?

Solar2D Composer
#1

Hey all, I have an array Items={}  that I use to declare variables and display objects in my scene.

When I leave the scene, I want to make sure I clean up and remove every item in that Items{} array but I need help determining if each item when I iterate through the table is either a display object (image, rectangle, etc.) or just a simple variable and then executing removeSelf() on the display object.

I thought I had seen this somewhere before but I’m struggling locating it.

For example:

for p,v in pairs( Items ) do

   if Items[p] IS A DISPLAY OBJECT then <-- what do I check for here??

         Items[p]:removeSelf()

   end

   Items[p]=nil

end

#2

FYI, I came up with this in testing, but I feel there might be a more efficient way:

for p,v in pairs( Items ) do

    if type(Items[p])==“table” then

        if Items[p].removeSelf~=nil then

            display.remove( Items[p] )

        end

    end

    Items[p] = nil

end

#3

If you add the display objects to scene.view, you don’t need to remove and nil them yourself. 

#4

I thought display objects in arrays/tables still needed to be removed explicitly.  I’m having images in my Items array stick around on scene reloads for some odd reason.

#5

As long as the table is local that will be removed also. 

Are you removing the scene from memory when you move to another one?

#6

FYI, I came up with this in testing, but I feel there might be a more efficient way:

for p,v in pairs( Items ) do

    if type(Items[p])==“table” then

        if Items[p].removeSelf~=nil then

            display.remove( Items[p] )

        end

    end

    Items[p] = nil

end

#7

If you add the display objects to scene.view, you don’t need to remove and nil them yourself. 

#8

I thought display objects in arrays/tables still needed to be removed explicitly.  I’m having images in my Items array stick around on scene reloads for some odd reason.

#9

As long as the table is local that will be removed also. 

Are you removing the scene from memory when you move to another one?