If you are always inserting only one sibling like so:
var content = '<div>I am a sibling<span>I am the sibling's child so I
don't matter</span></div>';
new Insertion.Bottom(element,content);
Then it is ok to use element.lastChild:
var newEl = element.lastChild; //the div you inserted above
However, if you have whitespace or text not wrapped in the node in your
insertion content, this will not work. The safer method would be as in
my previous example:
var oldLast = element.lastChild; //you don't care what this is, just stored for
later reference
new Insertion.Bottom(element,content);
var newEl = Element.next(oldLast); //gets the div you inserted
If the content you are inserting has multiple siblings, then the above code
would work to get the first element. TO get subsequent elements just keep using
Element.next:
//do something with the newEl from above (first element inserted)
while(newEl = Element.next(newEl)){
//do something with each additional sibling element inserted
}
One caveat, if element is completely empty then storing oldLast will not work
because there is no lastChild. Could be solved like so:
if(!element.lastChild) element.appendChild(document.createTextNode());
var oldLast = element.lastChild; //now oldLast is guaranteed to exist
....
Or, if inserting one extraneous empty text node is something you have problems
with there are other solutions which I'll leave up to those who care. <-(my
disclaimer in case someone decides to pipe in their objections)
Colin
Daniel Eben Elmore wrote:
> I'm primarily using Insertion.Bottom and don't see how to use the traversal
> methods because I don't know when I've reached the last element. I really
> don't know anything about the element being inserted. It's an HTML snippet
> returned from the server. Any ideas?
>
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