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Asked: 2026-06-06T23:23:36+00:00

In Determing if a SQL select returns an empty set asynchronously? I ended up

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In Determing if a SQL select returns an empty set asynchronously? I ended up trying to use an object’s method’s as an event handler. Using the normal “this” of the object doesn’t correspond to the method’s object in the context of an event handler (why, not sure, beyond my current simplistic understanding of javascript, my guess is due to scoping of variable names?).

As I mentioned in my previous Q, from http://w3future.com/html/stories/callbacks.xml, their solution is to basically have each object provide a “var me = this” variable. My question is, does this create a circular reference that will prevent the object from being garbage collected?

If so, is there a better way to accomplish the task?

thanks.

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1 Answer

  1. Editorial Team

    Yes, that will create a circular reference.

    However, it won’t cause any problems.
    Modern Javascript garbage collectors can handle circular references perfectly well. (except, in IE6, for references crossing between DOM and user objects)

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