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46 lines
1.8 KiB
Markdown
46 lines
1.8 KiB
Markdown
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# has-symbols <sup>[![Version Badge][2]][1]</sup>
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[![Build Status][3]][4]
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[![dependency status][5]][6]
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[![dev dependency status][7]][8]
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[![License][license-image]][license-url]
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[![Downloads][downloads-image]][downloads-url]
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[![npm badge][11]][1]
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Determine if the JS environment has Symbol support. Supports spec, or shams.
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## Example
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```js
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var hasSymbols = require('has-symbols');
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hasSymbols() === true; // if the environment has native Symbol support. Not polyfillable, not forgeable.
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var hasSymbolsKinda = require('has-symbols/shams');
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hasSymbolsKinda() === true; // if the environment has a Symbol sham that mostly follows the spec.
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```
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## Supported Symbol shams
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- get-own-property-symbols [npm](https://www.npmjs.com/package/get-own-property-symbols) | [github](https://github.com/WebReflection/get-own-property-symbols)
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- core-js [npm](https://www.npmjs.com/package/core-js) | [github](https://github.com/zloirock/core-js)
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## Tests
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Simply clone the repo, `npm install`, and run `npm test`
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[1]: https://npmjs.org/package/has-symbols
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[2]: http://versionbadg.es/ljharb/has-symbols.svg
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[3]: https://travis-ci.org/ljharb/has-symbols.svg
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[4]: https://travis-ci.org/ljharb/has-symbols
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[5]: https://david-dm.org/ljharb/has-symbols.svg
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[6]: https://david-dm.org/ljharb/has-symbols
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[7]: https://david-dm.org/ljharb/has-symbols/dev-status.svg
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[8]: https://david-dm.org/ljharb/has-symbols#info=devDependencies
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[9]: https://ci.testling.com/ljharb/has-symbols.png
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[10]: https://ci.testling.com/ljharb/has-symbols
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[11]: https://nodei.co/npm/has-symbols.png?downloads=true&stars=true
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[license-image]: http://img.shields.io/npm/l/has-symbols.svg
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[license-url]: LICENSE
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[downloads-image]: http://img.shields.io/npm/dm/has-symbols.svg
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[downloads-url]: http://npm-stat.com/charts.html?package=has-symbols
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