https://github.com/streetstrider/alt

generalization over Option, Either, Result and others for the practical use in JavaScript apps
https://github.com/streetstrider/alt

Last synced: 4 months ago
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generalization over Option, Either, Result and others for the practical use in JavaScript apps

• Host: GitHub
• URL: https://github.com/streetstrider/alt
• Owner: StreetStrider
• License: other
• Created: 2022-10-31T22:42:30.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2024-05-12T22:45:23.000Z (about 2 years ago)
• Last Synced: 2024-12-30T23:46:43.616Z (over 1 year ago)
• Language: TypeScript
• Homepage:
• Size: 92.8 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

          
# Alt

Generalization over Option, Either, Result and others for the practical use in JavaScript apps.

```jsx

function View () {

  const [ state, _ ] = useSomeState()

  useEffect(() => {

    state.tap_of('ERROR', error => console.error(error))

  }, [ state ])

  return 


  {

    state

    .map(data => )

    .settle_of('PROGRESS', () => )

    .settle_of('ERROR', error => 
Error: { error.message }
)

    .extract()

  }

  

}

```


`extract` takes OK value out of the Alt. It is exhaustive. If Alt is not settled to OK only it will return `unknown` type in static time and throw in run time.

## license

ISC, © Strider, 2024.