javascript memory leaks

Question

i am using jquery and doing something like this

DOM:

Answer 1

Since you're constantly referring to $('#parent'), you should create a reference to that object in the global scope so that jQuery isn't constantly looking for the object on each request. Doing this, you're essentially caching the reference to the object, which will cut down on memory usage tremendously.

_parent = $('#parent');

...

function(){ _parent.append('1'); }

Edit: I picked up this tip from this article on jQuery Performance Rules