I believe every array iteration method that takes a callback, except for reduce and reduceRight, take an optional receiver as the last argument (the `this` value), so they can't be meaningfully/ergonomically extended.
On Thu, Aug 15, 2019 at 3:00 PM Andrea Giammarchi < [email protected]> wrote: > isn't the second argument already reserved for the context? > > ```js > [1, 2, 3].findIndex(function (i) { return i == this; }, 2); > // 1 > ``` > > On Thu, Aug 15, 2019 at 11:51 PM Cyril Auburtin <[email protected]> > wrote: > >> It should be possible to add a second optional argument to the `find` and >> `findIndex` array methods, similarly to `indexOf` >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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