.. | ||
.github | ||
test | ||
.editorconfig | ||
.eslintrc | ||
.nycrc | ||
CHANGELOG.md | ||
index.d.ts | ||
index.js | ||
LICENSE | ||
package.json | ||
README.md | ||
tsconfig.json |
side-channel-map
Store information about any JS value in a side channel, using a Map.
Warning: if the key
is an object, this implementation will leak memory until you delete
it.
Use side-channel
for the best available strategy.
Getting started
npm install --save side-channel-map
Usage/Examples
const assert = require('assert');
const getSideChannelMap = require('side-channel-map');
const channel = getSideChannelMap();
const key = {};
assert.equal(channel.has(key), false);
assert.throws(() => channel.assert(key), TypeError);
channel.set(key, 42);
channel.assert(key); // does not throw
assert.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