Is it necessary to explicitly destroy elements?

From	"Leonardo Azpurua" <leonardo@exmvps.org>
Newsgroups	comp.lang.javascript
Subject	Is it necessary to explicitly destroy elements?
Date	2015-05-16 11:14 -0430
Organization	A noiseless patient Spider
Message-ID	<mj7odj$ejr$1@dont-email.me> (permalink)

Show all headers | View raw

Hi,

I have the idea of migrating a large Windows desktop application to the Web.

The browser will be used as a sort of Windows desktop, on top of wich 
several "forms" (HTML divs) will be opened and closed.

So far, I have managed to create a DIV, populating it with controls defined 
in a JSON object and attach events to these controls. Results are quite 
elementary yet, but the basic ideas seem to be pointing in the right 
direction.

As things grow, several DIVs will be opened, used, closed and disposed. So 
far, my "disposal" is limited to removing the top container element (i.e. 
the "form" DIV) from the document (document.removeChild(xDiv)).

My question (which is browser dependent, but there's no better place to ask 
browser related questions than here) is: do most "modern" browsers (say 
FireFox, Chrome, IE9+, Opera, Safari) automatically handle all the cleanup 
of a disposed element (detaching event handlers, freeing graphical 
resources, deallocating memory, etc) for all the elemets inside a disposed 
control, or is it necessary to provide a function to handle all of it 
explicitly?

Regards!

Back to comp.lang.javascript | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Is it necessary to explicitly destroy elements? "Leonardo Azpurua" <leonardo@exmvps.org> - 2015-05-16 11:14 -0430
  Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-16 17:44 +0200
    Re: Is it necessary to explicitly destroy elements? "Leonardo Azpurua" <leonardo@exmvps.org> - 2015-05-16 11:32 -0430
      Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-16 18:06 +0200
  Re: Is it necessary to explicitly destroy elements? "Leonardo Azpurua" <leonardo@exmvps.org> - 2015-05-16 11:42 -0430
    Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-16 18:12 +0200
  Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-16 18:09 +0200
    Re: Is it necessary to explicitly destroy elements? Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-05-16 22:05 -0300
      Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-17 08:01 +0200
        Re: Is it necessary to explicitly destroy elements? Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-05-17 13:29 -0300
          Re: Is it necessary to explicitly destroy elements? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-17 19:06 +0200
      Re: Is it necessary to explicitly destroy elements? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-05-17 11:53 +0200
        Re: Is it necessary to explicitly destroy elements? Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-05-17 13:20 -0300

csiph-web