Sept 20 TC39 Meeting Notes

Alex Russell alex at
Fri Sep 28 01:48:17 PDT 2012

On Sep 28, 2012, at 7:54 AM, Brendan Eich <brendan at> wrote:

> Rick Waldron wrote:
>> # Thin Arrow?
>> (Presented by Brendan Eich, Mozilla)
>> We have the fat-arrow, supported by Kevin Smith's research, it's a win. Some voices in the community don't want the unexpected behaviour of the soft-bound lexical `this`
> "bound 'this'" would do -- "hard-bound" if you insist.
> I think soft-bind is dead as discussed here, since it adds a flag argument or equivalent that must be set by every caller anywhere

It's demonstrably the same overhead as hard binding.

> -- this won't fly with V8 and SpiderMonkey and other engines.
> I'd prefer just "bound" so we can stop pretending there's a "soft" option.

Alex Russell
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