Proposal: syntactic sugar for extracting fields from objects

Григорий Карелин grundiss at gmail.com
Sun May 26 14:56:08 UTC 2019


Yep, in the same way as destructuring would work

вс, 26 мая 2019 г. в 17:52, guest271314 <guest271314 at gmail.com>:

> If not found in source ```firstName``` and/or ```lastName``` would be
> assigned the value ```undefined```?
>
> On Sun, May 26, 2019 at 1:40 PM Григорий Карелин <grundiss at gmail.com>
> wrote:
>
>> Wouldn't it be nice to have syntax like this:
>> const obj = { {firstName, lastName from user.profile}, otherData: 'other
>> data'  };
>> as a syntactic sugar for
>> const obj = {firstName: user.profile.firstName, lastName:
>> user.profile.lastName, otherData: 'other data'};
>>
>> Of cause at the moment we can write it in two steps:
>> const {fistName, lastName} = userProfile;
>> const obj = {firstName, lastName, otherData: 'other data'}
>>
>> But why use extra variables?
>>
>> Motivating example is lodash's .pick() method:
>> https://lodash.com/docs/#pick
>> _______________________________________________
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>>
>

-- 
С уважением,
Карелин Григорий
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