mahdi 0cb8d673d7 update		2 years ago
..
.github	update	2 years ago
test	update	2 years ago
.editorconfig	update	2 years ago
.eslintignore	update	2 years ago
.eslintrc	update	2 years ago
.nycrc	update	2 years ago
CHANGELOG.md	update	2 years ago
LICENSE	update	2 years ago
README.md	update	2 years ago
index.js	update	2 years ago
package.json	update	2 years ago

README.md

internal-slot

Truly private storage, akin to the JS spec’s concept of internal slots.

Uses a WeakMap when available; a Map when not; and a regular object in even older engines. Performance and garbage collection behavior will reflect the environment’s capabilities accordingly.

Example

var SLOT = require('internal-slot');
var assert = require('assert');

var o = {};

assert.throws(function () { SLOT.assert(o, 'foo'); });

assert.equal(SLOT.has(o, 'foo'), false);
assert.equal(SLOT.get(o, 'foo'), undefined);

SLOT.set(o, 'foo', 42);

assert.equal(SLOT.has(o, 'foo'), true);
assert.equal(SLOT.get(o, 'foo'), 42);

assert.doesNotThrow(function () { SLOT.assert(o, 'foo'); });

Tests

Simply clone the repo, npm install, and run npm test

Security

Please email @ljharb or see https://tidelift.com/security if you have a potential security vulnerability to report.