disconnecting from Mutation Observers

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I am having difficulty using the Mutation Observers and disconnecting on callback.

var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
    if (mutation.addedNodes)
    {
        var element = getElement(selectors);
        if(element)
        {
            observer.disconnect();
            return callback(element);
        }
    }
  })
});

observer.observe(document.body, {
 childList: true,
 subtree: true,
 attributes: false,
 characterData: false
});

observer.disconnect() is not stopping the listener, if I put it after the observer.observe then it will work but then I effectively a, not doing anything because it stops listening right away.

How do you disconnect inside the callback?

asked 37 secs ago

user1372314

11

disconnecting from Mutation Observers