What's the purpose (if any) of “[removed]” in event handler tags?

Question

I\'ve been making a concerted effort to improve my javascript skills lately by reading as much javascript code as I can. In doing this I\'ve sometimes seen the javascr

Answer 1

It should not be used in event handlers (though most browsers work defensively, and will not punish you). I would also argue that it should not be used in the href attribute of an anchor. If a browser supports javascript, it will use the properly defined event handler. If a browser does not, a javascript: link will appear broken. IMO, it is better to point them to a page explaining that they need to enable javascript to use that functionality, or better yet a non-javascript required version of the functionality. So, something like:

Ajax me

Edit: Thought of a good reason to use javascript:. Bookmarklets. For instance, this one sends you to google reader to view the rss feeds for a page:

var b=document.body;
if(b&&!document.xmlVersion){
  void(z=document.createElement('script'));
  void(z.src='http://www.google.com/reader/ui/subscribe-bookmarklet.js');
  void(b.appendChild(z));
}else{
  location='http://www.google.com/reader/view/feed/'+encodeURIComponent(location.href)
}

To have a user easily add this Bookmarklet, you would format it like so:

Drag this to your bookmarks, or right click and bookmark it!