Additional methods for Objects (like Arrays)

[Simon Blackwell]

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 <waldron.rick at gmail.com>
wrote:

>
>
> On Fri, Jan 29, 2016 at 6:08 PM Kaustubh Karkare <
> kaustubh.karkare at gmail.com> 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
>
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