Although Rick makes a good point that Object.values and Object.entries make creating functionality similar to that describe by Kaustubh, they are no exactly direct. We have added the requested functions to V2.0 of JavaScript Object Extensions at https://github.com/anywhichway/joex.
On Fri, Jan 29, 2016 at 7:44 PM, Rick Waldron <[email protected]> wrote: > > > On Fri, Jan 29, 2016 at 6:08 PM Kaustubh Karkare < > [email protected]> wrote: > >> I have recently come to feel the need for Object.map, which is like >> Array.map, >> except that it receive keys instead of indices. >> >> Object.prototype.map = function(mapFn, context) { >> return Object.keys(this) >> .reduce(function(result, key) { >> result[key] = mapFn.call(context, this[key], key, this); >> return result; >> }, {}); >> }; >> >> Without this, I frequently do the exact same thing as the above manually, >> which leads to unnecessary code duplication. >> >> Given that, it might make sense to match other methods from >> Array.prototype >> >> Object.map >> Object.filter >> Object.every >> Object.some >> Object.reduce >> Object.find >> Object.findKey // like Array.findIndex >> > > > Are these necessary given the introduction of Object.values() and > Object.entries()? https://github.com/tc39/proposal-object-values-entries > > Rick > > _______________________________________________ > 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
