|                                                              |  | # side-channel-list <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
[![github actions][actions-image]][actions-url][![coverage][codecov-image]][codecov-url][![License][license-image]][license-url][![Downloads][downloads-image]][downloads-url]
[![npm badge][npm-badge-png]][package-url]
Store information about any JS value in a side channel, using a linked list.
Warning: this implementation will leak memory until you `delete` the `key`.Use [`side-channel`](https://npmjs.com/side-channel) for the best available strategy.
## Getting started
```shnpm install --save side-channel-list```
## Usage/Examples
```jsconst assert = require('assert');const getSideChannelList = require('side-channel-list');
const channel = getSideChannelList();
const key = {};assert.equal(channel.has(key), false);assert.throws(() => channel.assert(key), TypeError);
channel.set(key, 42);
channel.assert(key); // does not throwassert.equal(channel.has(key), true);assert.equal(channel.get(key), 42);
channel.delete(key);assert.equal(channel.has(key), false);assert.throws(() => channel.assert(key), TypeError);```
## Tests
Clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/side-channel-list[npm-version-svg]: https://versionbadg.es/ljharb/side-channel-list.svg[deps-svg]: https://david-dm.org/ljharb/side-channel-list.svg[deps-url]: https://david-dm.org/ljharb/side-channel-list[dev-deps-svg]: https://david-dm.org/ljharb/side-channel-list/dev-status.svg[dev-deps-url]: https://david-dm.org/ljharb/side-channel-list#info=devDependencies[npm-badge-png]: https://nodei.co/npm/side-channel-list.png?downloads=true&stars=true[license-image]: https://img.shields.io/npm/l/side-channel-list.svg[license-url]: LICENSE[downloads-image]: https://img.shields.io/npm/dm/side-channel-list.svg[downloads-url]: https://npm-stat.com/charts.html?package=side-channel-list[codecov-image]: https://codecov.io/gh/ljharb/side-channel-list/branch/main/graphs/badge.svg[codecov-url]: https://app.codecov.io/gh/ljharb/side-channel-list/[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/side-channel-list[actions-url]: https://github.com/ljharb/side-channel-list/actions
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