[falcor84]

Are you implying that there are memory leaks in browsers' internal implementation of events? Because my take is that the problem is with "user space" scripts not cleaning up after themselves, and I don't see how that would get better by adding yet another API to be mindful of.

[gibbitz]

I believe this would be more related to something like memoizing a DOM structure in a "Live" listener that is later removed from the DOM but not garbage collected due to the reference in the event listener. As the poster mentioned, developer error -- not a fundamental language or browser implementation flaw.

[naasking]

If a language or browser implementation can't reclaim this unused memory thus creating a memory leak, that arguably is a flaw. It's literally a DoS attack vector that can be exploited by the untrusted scripts that run in the browser sandbox.