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codeql-action/node_modules/is-weakmap/README.md
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# is-weakmap <sup>[![Version Badge][2]][1]</sup> | |
[![Build Status][3]][4] | |
[![dependency status][5]][6] | |
[![dev dependency status][7]][8] | |
[![License][license-image]][license-url] | |
[![Downloads][downloads-image]][downloads-url] | |
[![npm badge][11]][1] | |
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag. | |
## Example | |
```js | |
var isWeakMap = require('is-weakmap'); | |
assert(!isWeakMap(function () {})); | |
assert(!isWeakMap(null)); | |
assert(!isWeakMap(function* () { yield 42; return Infinity; }); | |
assert(!isWeakMap(Symbol('foo'))); | |
assert(!isWeakMap(1n)); | |
assert(!isWeakMap(Object(1n))); | |
assert(!isWeakMap(new Set())); | |
assert(!isWeakMap(new WeakSet())); | |
assert(!isWeakMap(new Map())); | |
assert(isWeakMap(new WeakMap())); | |
class MyWeakMap extends WeakMap {} | |
assert(isWeakMap(new MyWeakMap())); | |
``` | |
## Tests | |
Simply clone the repo, `npm install`, and run `npm test` | |
[1]: https://npmjs.org/package/is-weakmap | |
[2]: http://versionbadg.es/inspect-js/is-weakmap.svg | |
[3]: https://travis-ci.org/inspect-js/is-weakmap.svg | |
[4]: https://travis-ci.org/inspect-js/is-weakmap | |
[5]: https://david-dm.org/inspect-js/is-weakmap.svg | |
[6]: https://david-dm.org/inspect-js/is-weakmap | |
[7]: https://david-dm.org/inspect-js/is-weakmap/dev-status.svg | |
[8]: https://david-dm.org/inspect-js/is-weakmap#info=devDependencies | |
[11]: https://nodei.co/npm/is-weakmap.png?downloads=true&stars=true | |
[license-image]: http://img.shields.io/npm/l/is-weakmap.svg | |
[license-url]: LICENSE | |
[downloads-image]: http://img.shields.io/npm/dm/is-weakmap.svg | |
[downloads-url]: http://npm-stat.com/charts.html?package=is-weakmap |