It doesn't matter if they're missing IDs. You don't need the IDs.
(Also, IDs cannot begin with a number. It's not valid.)
All you need to know is how many new messages you received on your
latest update (to determine how many old ones to remove), and your
maximum number of messages to display at once. That is enough info to
do what you want.
On Sep 1, 11:07 am, Namir <namiras...@hotmail.com> wrote:
> wouldnt work, even if I set the index to count the number of messages
> and subtract 20 and index those as sometimes there may be missing ID's
> as they may have been deleted.
>
> On Sep 1, 9:59 pm, James <james.gp....@gmail.com> wrote:
>
> > Try using just:
> > $("span.message:lt(100)")
>
> > If you want to remove elements that are on the bottom, you may want to
> > use gt() instead of lt().
> > For example, suppose your code looks like:
>
> > <span class="message" id="msg5">test</span> // index 0
> > <span class="message" id="msg4">test</span> // index 1
> > <span class="message" id="msg3">test</span> // index 2
> > <span class="message" id="msg2">test</span> // index 3
> > <span class="message" id="msg1">test</span> // index 4
>
> > Doing:
> > $("span.message:gt(2)").hide();
> > will hide:
> > <span class="message" id="msg2">test</span> // index 3
> > <span class="message" id="msg1">test</span> // index 4
>
> > because they have index greater-than 2.
>
> > On Sep 1, 10:16 am, Namir <namiras...@hotmail.com> wrote:
>
> > > I tried using this $("span.message[id="+old_messages+"]:lt(100)").hide
> > > ("slide", {direction: "up"}, "2000"); but it doesnt seem to be working
> > > correctly
>
> > > On Sep 1, 7:07 pm, aquaone <aqua...@gmail.com> wrote:
>
> > > > Then use indexes from the parent and :lt
> > > > (http://docs.jquery.com/Selectors/lt#index)
>
> > > > aquaone
>
> > > > On Tue, Sep 1, 2009 at 04:07, Namir <namiras...@hotmail.com> wrote:
>
> > > > > Well its for a chat box and I want to remove old messages as new
> > > > > messages come in, so that there are 20 messages being shown at any one
> > > > > time, using = works perfectly if you add 1 new message because it
> > > > > selects the last message ID and subtracts 20, but if you add 2
> > > > > messages then the first message will stay and the second message will
> > > > > disappear.
> > > > > Source code:http://www.forsakenrealms.co.cc/chat/?user=test
>
> > > > > On Aug 31, 11:01 pm, "Michael Geary" <m...@mg.to> wrote:
> > > > > > Can you give us a hint what your DOM elements look like? For
> > > > > > example, are
> > > > > > these ID attributes in ascending order in the DOM? That would allow
> > > > > > you
> > > > > to
> > > > > > use a very fast binary search. If they are in an undetermined order
> > > > > > then
> > > > > > you're pretty much stuck with looping through them - but with
> > > > > > thousands
> > > > > of
> > > > > > them I would use a for loop rather than .each().
>
> > > > > > Or as Josh suggested, do something on the server. But it's hard to
> > > > > > make
> > > > > any
> > > > > > recommendations without knowing more about what you're doing.
>
> > > > > > -Mike
>
> > > > > > > From:Namir
>
> > > > > > > Still how would I do it with an each? I'd still need to
> > > > > > > select all the ones with an attribute of less than x, and it
> > > > > > > would be stupid to loop it from 1 to whatever as x can reach
> > > > > > > thousands. Do you have any other suggestions as to how I
> > > > > > > could do this?
>
> > > > > > > On Aug 31, 9:58 pm, aquaone <aqua...@gmail.com> wrote:
> > > > > > > > id will be a string. AFAIK there's no built-in to parse it
> > > > > > > as a number
> > > > > > > > and compare. you'd either have to .each() it or find
> > > > > > > another means of
> > > > > > > > accomplishing what you are trying to do.
>
> > > > > > > > aquaone
>
> > > > > > > > On Mon, Aug 31, 2009 at 13:50,Namir<namiras...@hotmail.com>
> > > > > > > > wrote:
>
> > > > > > > > > How can I do a less than in a select e.g. something like
> > > > > > > > > $.("span.class [id<"+ a_custom_variable +"]") when I
> > > > > > > tried that it
> > > > > > > > > just selected all span of class with an ID attribute rather
> > > > > > > > > than
> > > > > > > > > where ID attribute is less than
>
>
