mirror of
https://github.com/react/react-native-devtools-frontend.git
synced 2026-10-06 20:11:38 +08:00
Tim van der Lippe
bc3a0b7a2b
R=jacktfranklin@chromium.org Bug: none Change-Id: I0ad7ba9133af3db19c448a284d79bdfc08101dea Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3268294 Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org> Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org> Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
53 lines
1.9 KiB
Markdown
53 lines
1.9 KiB
Markdown
# internal-slot <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
|
||
|
||
[![dependency status][deps-svg]][deps-url]
|
||
[![dev dependency status][dev-deps-svg]][dev-deps-url]
|
||
[![License][license-image]][license-url]
|
||
[![Downloads][downloads-image]][downloads-url]
|
||
|
||
[![npm badge][npm-badge-png]][package-url]
|
||
|
||
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
|
||
|
||
```js
|
||
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](https://github.com/ljharb) or see https://tidelift.com/security if you have a potential security vulnerability to report.
|
||
|
||
[package-url]: https://npmjs.org/package/internal-slot
|
||
[npm-version-svg]: https://versionbadg.es/ljharb/internal-slot.svg
|
||
[deps-svg]: https://david-dm.org/ljharb/internal-slot.svg
|
||
[deps-url]: https://david-dm.org/ljharb/internal-slot
|
||
[dev-deps-svg]: https://david-dm.org/ljharb/internal-slot/dev-status.svg
|
||
[dev-deps-url]: https://david-dm.org/ljharb/internal-slot#info=devDependencies
|
||
[npm-badge-png]: https://nodei.co/npm/internal-slot.png?downloads=true&stars=true
|
||
[license-image]: https://img.shields.io/npm/l/internal-slot.svg
|
||
[license-url]: LICENSE
|
||
[downloads-image]: https://img.shields.io/npm/dm/internal-slot.svg
|
||
[downloads-url]: https://npm-stat.com/charts.html?package=internal-slot
|