bruant.d at gmail.com
Mon Jan 9 00:29:42 PST 2012
Le 09/01/2012 06:29, Brendan Eich a écrit :
> On Jan 8, 2012, at 7:20 PM, John J Barton wrote:
>> On Sun, Jan 8, 2012 at 3:35 PM, Brendan Eich <brendan at mozilla.com
>> <mailto:brendan at mozilla.com>> wrote:
>>> Firebug uses a library bind a lot, and we continually struggled
>>> with the memoization problem; we did not try to solve it in part
>>> because we hated Firebug's bind: it made debugging even more
>>> painful since it messes up the call stack. Using the ES bind()
>>> ends up not being a win, since I now have exactly the same problems.
>> I have a question: why is bind used so much in Firebug for event
>> listeners, when the DOM guarantees to dispatch them with the
>> event target bound to |this|? Way back in '95, I created event
>> handlers but did not add bind (it had to be discovered later).
>> But dynamic |this| binding combined with DOM event target-based
>> listening and handling kept this properly bound. What has changed?
>> Sorry I don't know what you mean here.
> Why all the this-binding in Firebug if (as you suggested and a grep
> seems to confirm [but I skimmed]) the methods being this-bound are all
> or mostly event listeners? The DOM dispatches event handlers on the
> correct |this|.
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