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Posted to jira@arrow.apache.org by "Dominik Moritz (Jira)" <ji...@apache.org> on 2021/04/09 04:50:00 UTC

[jira] [Assigned] (ARROW-12303) [JS] Use iterators instead of generators in critical code paths

     [ https://issues.apache.org/jira/browse/ARROW-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dominik Moritz reassigned ARROW-12303:
--------------------------------------

    Assignee: Dominik Moritz

> [JS] Use iterators instead of generators in critical code paths
> ---------------------------------------------------------------
>
>                 Key: ARROW-12303
>                 URL: https://issues.apache.org/jira/browse/ARROW-12303
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: JavaScript
>            Reporter: Dominik Moritz
>            Assignee: Dominik Moritz
>            Priority: Major
>         Attachments: Screen Shot 2021-04-08 at 09.40.51.png
>
>
> I found that generators are generally slower than iterators in most browsers. See [https://observablehq.com/@domoritz/yield-vs-iterator-vs-callback|https://observablehq.com/@domoritz/yield-vs-iterator-vs-callback]. I attached the results for Chrome. We should consider using iterators instead of generators for iterating over row proxies and vectors. 



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