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lazy-chain

Lazy Chain

NPM

Build Status js-standard-style codecov

A library to allow easy method chaining with es6 proxies.

Installation

NPM

First run npm install lazy-chain then require the file

const LazyChain = require("lazy-chain")

Or include the direct file

<script src="./npm_modules/lazy-chain/index.js"></script>

Usage

Setup

//Create a new LazyList 
const LazyChain = require('lazy-chain')
const lazy = LazyChain() //Or use new 

Chaining

Chaining runs a series of methods on the fed object, and then returns the modified object

 
 
//Chain together a series of methods 
lazy.push(7)
lazy.push(8)
lazy.forEach((value) => {
  console.log(value)
})
 
//Feed the chain an object 
lazy.chain([3, 4, 5]) //Becomes [3, 4, 5, 7, 8] 
lazy.chain(['hello', true]) //Becomes ['hello', true, 7, 8] 

Piping

Piping runs a series of methods, running each sequencial method on the previous methods output, and then returns the output of the last method.

//Chain together some methods 
lazy.map((value) => {
  return value+1
})
lazy.map((value) => {
  return value*2
})
 
//Feed the pipeline the first value 
lazy.pipe([1, 2]) //Becomes [5, 6] 
lazy.pipe([3, 4]) //Becomes [8, 10]