structural-sharing
v0.0.2
Published
Tests whether two objects (recursively) have structural sharing. In other words, whether they access a common memory location. If the exported method *shareMemory* returns *false* then each of the objects can be modified, anywhere in its graph, without af
Downloads
11
Maintainers
Readme
js-structural-sharing
Tests whether two objects (recursively) have structural sharing. In other words, whether they access a common memory location. If the exported method shareMemory returns false then each of the objects can be modified, anywhere in its graph, without affecting the other.
Installation
npm install structural-sharing --save
Usage
import {shareMemory} from 'structural-sharing'
Examples
import {shareMemory} from 'structural-sharing'
const o = {};
const a1 = {a1: {a2: {v:1, y:2}, a3: o}, a4: [1,2,3,4]};
const a2 = {a1: {a2: [1, 2,3, [1, 3, [1, 2, o]]]}, a4: [1,2,3,4]};
assert.isTrue(shareMemory(o, a1));
assert.isTrue(shareMemory(o, a2));
assert.isTrue(shareMemory(a1, a2));
assert.isFalse(shareMemory(a1, JSON.parse(JSON.stringify(a2))));
For more examples look in file test.js
Tests
npm test