I think that we can't add a new parameter on `Object.keys`, because it could be a break change (and it will be a little bad to read). We could add a new method on `Object`, like `Object.keysSet`, but I don't know how important it is.
On Sun, 18 Oct 2020 at 04:26, #!/JoePea <[email protected]> wrote: > Well that makes sense! Would it be worth adding an option like > `Object.keys(obj, true)` to return a set? Or perhaps > `Object.keySet(obj)`? > #!/JoePea > > On Fri, Oct 16, 2020 at 11:54 PM Jordan Harband <[email protected]> wrote: > > > > Because Object.keys was standardized in 2009, 6 years before Set existed. > > > > On Fri, Oct 16, 2020 at 6:51 PM #!/JoePea <[email protected]> wrote: > >> > >> Sets are faster, even for tiny lists of four items. See the perf tests > >> (tested in Chrome): > >> > >> https://twitter.com/trusktr/status/1315848017535098880 > >> > >> https://twitter.com/trusktr/status/1317281652540731392 > >> > >> #!/JoePea > >> _______________________________________________ > >> 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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