[@types/level] iterator type is lacking `[Symbol.asyncIterator]()` #59265

CMCDragonkai · 2022-03-14T08:24:56Z

CMCDragonkai
Mar 14, 2022

The db.iterator() which returns AbstractIterator<any, any> is capable of being iterated with a for await.

Currently this results in an error:

Type 'AbstractIterator<any, any>' must have a '[Symbol.asyncIterator]()' method that returns an async iterator.

Example:

    const i = db.iterator();
    for await (const [k, v] of i) {
      console.log(k.toString(), v.toString());
    }

typescript-bot · 2022-03-14T08:24:57Z

typescript-bot
Mar 14, 2022
Collaborator

Thanks for the discussion about "level", some useful links for everyone:

Pinging the DT module owners: @danielfx90.

0 replies

CMCDragonkai · 2022-03-14T08:26:04Z

CMCDragonkai
Mar 14, 2022
Author

Could also be affecting the @types/levelup, @types/abstract-leveldown and @types/subleveldown.

0 replies

CMCDragonkai · 2022-03-14T08:51:33Z

CMCDragonkai
Mar 14, 2022
Author

Actually alot of iterator types are no longer correct. See: https://github.com/Level/abstract-leveldown#iterator

Things like next, seek, end are all provided, and next and end now can return promises.

0 replies

danielfx90 · 2022-03-14T11:27:12Z

danielfx90
Mar 14, 2022

Great! Would you like to submit a PR with the changes? I would gladly review it

0 replies

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[@types/level] iterator type is lacking [Symbol.asyncIterator]() #59265

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danielfx90 Mar 14, 2022

[@types/level] iterator type is lacking `[Symbol.asyncIterator]()` #59265

CMCDragonkai
Mar 14, 2022

typescript-bot
Mar 14, 2022
Collaborator

CMCDragonkai
Mar 14, 2022
Author

CMCDragonkai
Mar 14, 2022
Author

danielfx90
Mar 14, 2022