fast-deep-copy

Only 20 lines code! no deps!
It can correctly handle circular references!

Useage:

``
npm install -S fast-deep-copy
`

`js

import { deepCopy } from 'fast-deep-copy'

let a = { dataA: 10, b: null };
let b = { dataB: 20, a: null };
a.b = b;
b.a = a;

let newA = deepCopy(a);
console.log(newA.dataA === 10); //true
console.log(newA.b.dataB === 20); //true
console.log(newA.b.a === newA); //true
``