> "Almost" functional programming (typed for TypeScript) utils methods

Why

Wrapping all the methods I usually put within a functional.js file inside my projects, as node module. BTW this is a nice way to make mistake and learn more about functional programming.

Install

``
$ yarn add phunctional
`

Usage

The library can be used both with normal JavaScript and TypeScript.

`js
const {switchcase} = require('phunctional');

const awesomeSwitch = {
aCondition: 'some value',
anotherCondition: 'some other value'
};

const res = switchcase(awesomeSwitch)('a default value')('aCondition');
console.log(res);
// => some value

`




Methods

$3

> Simple switch but composable with object literals. It also can run a function.

Object -> Any -> String

expand

- Object: object of cases to analyze
- Any: default case as anything you need
- String: key to check

##### return case | defaultCase

Returns the choosen case or the defaultCase




$3

> Classic map on array but without side effects.

Function -> Array

expand

- Function: function to handle the map
- Array: array of items

##### return [T] | []

Returns an empy array if the array passed is not valid.

$3

> forEach that returns a Promise and can also handle a delay between iterations.

(Array, [Number]) -> Function -> Promise

expand

- Array: array of items to iterate
- Number: delay in milliseconds to run each iteration and wait

- Function: function to handle the single item

##### return Promise

Returns a Promise` with an array of the results of every iteration.

License

MIT © LasaleFamine