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吴治霖
c1d37358dd
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1 year ago | |
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.github | 1 year ago | |
test | 1 year ago | |
.editorconfig | 1 year ago | |
.eslintignore | 1 year ago | |
.eslintrc | 1 year ago | |
.nycrc | 1 year ago | |
CHANGELOG.md | 1 year ago | |
LICENSE | 1 year ago | |
README.md | 1 year ago | |
index.js | 1 year ago | |
package.json | 1 year 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.