Rename object properties without the mediation of a new variable

Asked Apr 30 '20 at 12:18

Active Apr 30 '20 at 14:44

Viewed 42 times

I have a function that stores files data in an object. The files get saved in the object with their original names, I want to rename the files names with custom names.

That's what I did, it works fine, I'm just wondering if there is a way to do it without the mediation of a new variable(newObj).

const {
    'test123': purchase, 
    'test456': purchase2, 
    ...rest
} = stories
 newObj = {purchase, ...rest}
 console.log(newObj)

Stories object:

stories {
    'test123': StoryProvider {
              info: StoryInfo {
                client: [Object],
                company: [Object],
              },
              costs: StoryCosts {
                test: test,
              }
    },
    'test456': StoryProvider {
              info: StoryInfo {
                client: [Object],
                company: [Object],
              },
              costs: StoryCosts {
                test: test,
              }
     }
}

edited Apr 30 '20 at 14:44

asked Apr 30 '20 at 12:18

user3378165

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It would be nice if you could break your problem down to just the part about renaming things. All of the code around importing the JSON file, the `XlsxPopulate`, `StoryProvider` and promises make that hard to identify and reproduce. – Heretic Monkey Apr 30 '20 at 12:25
so you are renaming every object ? – M A Salman Apr 30 '20 at 12:29
@HereticMonkey Thanks, I have edited the question. – user3378165 Apr 30 '20 at 14:05
@Supercool. Please see my edited question. – user3378165 Apr 30 '20 at 14:06
So, what would be nice is something simplified down to just the renaming part. Something like https://jsfiddle.net/tv902kj8/1/. I have no idea if that gets across what you're trying to do, because I'm still not sure what you're trying to rename to what. – Heretic Monkey Apr 30 '20 at 14:14
@HereticMonkey Is now better? – user3378165 Apr 30 '20 at 14:27
@user3378165 why avoid creating a new object ? Is it the new object you want to avoid or the new variable ? – Gabriele Petrioli Apr 30 '20 at 14:33
@GabrielePetrioli, Right, I would actually want to avoid the extra variable `newObj` – user3378165 Apr 30 '20 at 14:47
@user3378165 closed it a duplicate. There are multiple answers there that fit the requirement. 3rd most voted offers single line rename as well. – Gabriele Petrioli Apr 30 '20 at 14:53

Rename object properties without the mediation of a new variable

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