threading

#### A clojure-inspired utility for threading arbitrary data into the first or last argument of a sequence of functions

$3

In order to compose function operations on arbitrary data, you have to nest functions
``javascript
expect(subtract(add(3, 3) 3)).toBe(3);
`
The legibility of the example decreases as the number of functions increase.

$3

#### Thread-first
Apply the initial & resulting values of the function list to the first argument of the function.

Simply provide an initial value then the functions you'd like to compose on the value.
`javascript
import { threadFirst } from 'threading';

const value = threadFirst(
5,
timesThree,
plusOne
);

expect(value).toBe(16);
`

To use with a function that should already have a value you can pass an array containing the function and the other arguments.
`javascript
import { threadFirst } from 'threading';

const value = threadFirst(
5,
[times 3],
[divideby 5]
);

expect(value).toBe(3);
`

#### Thread-last
Apply the initial & resulting values of the function list to the last argument of the function.

Simply provide an initial value then the functions you'd like to compose on the value.
`javascript
import { threadLast } from 'threading';

const value = threadLast(
5,
timesThree,
plusOne
);

expect(value).toBe(16);
`

To use with a function that should already have a value you can pass an array containing the function and the other arguments.
`javascript
import { threadLast } from 'threading';

const value = threadFirst(
5,
[times 2],
[divideby 5]
);

expect(value).toBe(0.5);
``