12:58
<Jack Works>
I've posted the slides for Extractors in case anyone has feedback: https://1drv.ms/p/s!AjgWTO11Fk-Tkr0Z2sm9bVmO_agqpA?e=7TdVup

you can copy Function.prototype [ %Symbol.customMatcher% ] to extractor proposal maybe

https://tc39.es/proposal-pattern-matching/#sec-function.prototype-%symbol.custommatcher%

15:53
<rbuckton>
That won't be very useful for the extractors proposal because binding/assignment patterns need an iterable result
15:56
<Jack Works>
with this, you can write a normal function and call it in the example without implement it as { [Symbol.customMatcher]: ... }
17:59
<rbuckton>
Perhaps, but I'm trying to illustrate the API itself. Besides, that will be covered in the pattern matching slides