https://github.com/leslieJt/callbag-last

Callbag operator that emit the last value emitted from source on completion, based on provided expression.
https://github.com/leslieJt/callbag-last

callbag last

Last synced: 3 months ago
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Callbag operator that emit the last value emitted from source on completion, based on provided expression.

• Host: GitHub
• URL: https://github.com/leslieJt/callbag-last
• Owner: leslieJt
• License: mit
• Created: 2018-02-03T14:24:41.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2023-04-20T12:23:38.000Z (over 1 year ago)
• Last Synced: 2024-04-10T05:22:42.416Z (9 months ago)
• Topics: callbag, last
• Language: JavaScript
• Homepage:
• Size: 97.7 KB
• Stars: 2
• Watchers: 1
• Forks: 1
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-callbags - last

README

        
# callbag-last

[Callbag](https://github.com/callbag/callbag) operator that emit the last value emitted from source on completion, based on provided expression.

`npm install callbag-last`

`last(predicate?: (v: any) => Boolean, resultSelector?: (v: any) => any)`

```javascript

const {

  pipe,

  interval,

  take,

  fromIter,

  forEach

} = require('callbag-basics');

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

pipe(

  interval(100),

  take(5),

  last(),

  forEach(v => console.log(v)) // 4

);

pipe(

  interval(100),

  take(5),

  last(v => v % 3 === 0, v => `value: ${v}`),

  forEach(v => console.log(v)) // value: 3

);

pipe(

  fromIter([1, 2, 3, 4]),

  last(),

  forEach(v => console.log(v)) // 4

);

```