https://github.com/fasiha/callbag-filter-promise

👜 Callbag operator that conditionally lets data pass through, now with Promisified/async conditional predicates
https://github.com/fasiha/callbag-filter-promise

Last synced: 3 months ago
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👜 Callbag operator that conditionally lets data pass through, now with Promisified/async conditional predicates

• Host: GitHub
• URL: https://github.com/fasiha/callbag-filter-promise
• Owner: fasiha
• License: mit
• Fork: true (staltz/callbag-filter)
• Created: 2018-03-10T08:49:15.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-03-10T09:07:02.000Z (almost 7 years ago)
• Last Synced: 2024-10-20T11:33:03.790Z (3 months ago)
• Language: JavaScript
• Homepage:
• Size: 8.79 KB
• Stars: 6
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-callbags - filter-promise

README

        
callbag-filter-promise

----------------------

A version of callbag-filter that works with async/await/Promisified predicates.

`npm install callbag-filter-promise`

Example:

    const fromIter = require('callbag-from-iter');

    const iterate = require('callbag-iterate');

    const filterPromise = require('callbag-filter-promise');

    const source = filterPromise(async x => await x % 2)(fromIter([1,2,3,4,5]));

    iterate(x => console.log(x))(source); // 1

                                          // 3

                                          // 5

Note if you tried the above with just `filter`, 2 and 4 would be passed, since

the condition returns a Promise object, which is truthy.