Package Exports

simple-maybe

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Readme

Maybe Monad

v0.1.2

simple-maybe is a simple, lightweight Maybe monad module.

It is written in the Either-style pattern of a with Just and Nothing as the left/right identities.

Note: this repo is quite new, and so long as I keep 0.x as the version, it is still considered unstable. It won't be in 0.x for long, though!

This library plays very well with Ramda.

It's a what?

Some background in functional programming is helpful in understanding, but in short you would use this module when you are trying to take control of mutations, side-effects, and banish null issues from your code.

How to use

Only one thing is exposed by the module currently: Maybe.

const {Maybe} = require('simple-maybe');

const result = Maybe.of(someFn())
                .map(someOtherFn)
                .fork(err => handleAnError(err), value => doSomethingWithFinalResult(value));

Example

Forthcoming!

Roadmap

Not sure yet. This may not need much updating as functional programming doesn't change much!

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.