I have a process that updates data fairly frequently with comet style long-polling requests. Some of these updates are fairly frequent. I know that a good general rule of thumb is to remove the target DOM element, make the necessary changes, and then put it back into the DOM (so you only get hit twice with the re-render), but I wasn't sure if you only replace the inner text of an element if you incur the same hit. In my case, I am updating the content of some table-cells, that are just text (not wrapped in spans or divs).
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