@simplesmiler/thru

Type-safe operator for chaining

Usage no npm install needed!

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README

@simplesmiler/thru

Type-safe operator for chaining

Allows function calls to follow the data flow instead of being nested
Does not require pre-chain wrapping and post-chain unwrapping
Does not require explicit-er types than usual
Promotes code minification due to tree shaking and name mangling

Inspired by:

Lodash.thru: https://lodash.com/docs/
Bind operator proposal: https://github.com/tc39/proposal-bind-operator
Pipeline operator proposal: https://github.com/tc39/proposal-pipeline-operator
Do notation from Haskell: https://en.wikibooks.org/wiki/Haskell/do_notation
Discussion over at https://esdiscuss.org/topic/array-prototype-tap

Install

npm install @simplesmiler/thru

Use

import { thru, tap } from '@simplesmiler/thru';
import { flatten } from 'lodash/fp';

const result = [1, 2, 3]
  .map((x) => [x, x * 2])
  [thru](flatten)
  [thru]((list) => list.slice().sort((a, b) => a - b))
  [tap]((sorted) => console.log('DEBUG:', sorted)) 
  .join(', ')
  [thru]((text) => `Computed numbers: ${text}`);

License

Copyright © 2020 Denis Karabaza denis.karabaza@gmail.com.

This project is ISC licensed.