https://github.com/msvbg/parliament
The funkiest functional JavaScipt library you've never heard of.
https://github.com/msvbg/parliament
Last synced: about 1 year ago
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The funkiest functional JavaScipt library you've never heard of.
- Host: GitHub
- URL: https://github.com/msvbg/parliament
- Owner: msvbg
- License: mit
- Created: 2015-06-30T21:06:28.000Z (almost 11 years ago)
- Default Branch: master
- Last Pushed: 2015-07-11T14:54:18.000Z (almost 11 years ago)
- Last Synced: 2025-04-26T08:45:03.069Z (about 1 year ago)
- Language: JavaScript
- Size: 254 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
Awesome Lists containing this project
README
> parliament.js is a functional programming utility belt in the vein of
Underscore, Lodash, Ramda and Highland, with first-class
support for immutable data structures.
[![Build status][travis-image]][travis-url]
## Install
```
npm install parliament
```
## Examples
One of the strengths of functional programming is how it takes full advantage of composition. For instance, this is how you would define `flatMap` with parliament.js:
```js
let flatMap = seq(map, flatten);
```
Similarly, this is how the Underscore function `compact` is implemented:
```js
let compact = filter(isTruthy);
```
The library works seamlessly with the included immutable data structures,
`Vector` and `Dict`, mapping to JavaScript's `Array` and `Object` respectively.
```js
let vec = Vector.of(1, 2, 3, 4, 5, 6, 7);
let f = filter(mod(2));
let odd = f(vec);
odd.toArray(); // [1, 3, 5, 7]
vec.toArray(); // [1, 2, 3, 4, 5, 6, 7]
```
There is also experimental support for lazy data structures, by making use of
ES6 generators. `Nat` is an included sequence representing the numbers
`[0, Infinity)`.
```js
let fives = map(multiply(5), take(5, Nat()));
fives.toArray() // [0, 5, 10, 15, 20]
```
## Why not X instead?
When in doubt, use Lodash :)
## License
MIT © Martin Svanberg
[travis-image]: https://img.shields.io/travis/msvbg/parliament.svg?style=flat
[travis-url]: https://travis-ci.org/msvbg/parliament