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threading
Advanced tools
A clojure-inspired utility for threading arbitrary data into the first or last argument of a sequence of functions
Readme
In order to compose function operations on arbitrary data, you have to nest functions
expect(subtract(add(3, 3) 3)).toBe(3);
The legibility of the example decreases as the number of functions increase.
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.
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.
import { threadFirst } from 'threading';
const value = threadFirst(
5,
[times 3],
[divideby 5]
);
expect(value).toBe(3);
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.
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.
import { threadLast } from 'threading';
const value = threadFirst(
5,
[times 2],
[divideby 5]
);
expect(value).toBe(0.5);
FAQs
A clojure-inspired utility for threading arbitrary data into the first or last argument of a sequence of functions
The npm package threading receives a total of 63 weekly downloads. As such, threading popularity was classified as not popular.
We found that threading demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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