javascript - Set time out still runs when i clear the div -

i have settimeout have assigned div this:

function update(div,data){     div._mytimer = settimeout(function() { update(data);},1);    } 

but reason when remove div page time out still runs.

for example lets clear parent of div doing:

parent.innerhtml = ''; 

shouldn't cancel time out because div no longer appears in dom? or have misunderstood something.

the timeout once set not need div exist. should remember reference timeout , clear manually before clear div.

when remove div setting innerhtml of parent, can every div going removed , check if has _mytimer property set , in case clear timer.

for (var i=0, ilen=parent.childnodes.length; i<ilen; i++) {     if (parent.childnodes[i]._mytimer) {         cleartimeout(parent.childnodes[i]._mytimer);     } } 

or if delete div way, can acces reference directly:

cleartimeout(div._mytimer);
div.parentnode.removechild(div);

not innerhtml = '', way have more control on elements removed