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50 lines
1.8 KiB
50 lines
1.8 KiB
# get-proto <sup>[![Version Badge][npm-version-svg]][package-url]</sup> |
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[![github actions][actions-image]][actions-url] |
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[![coverage][codecov-image]][codecov-url] |
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[![License][license-image]][license-url] |
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[![Downloads][downloads-image]][downloads-url] |
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[![npm badge][npm-badge-png]][package-url] |
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Robustly get the [[Prototype]] of an object. Uses the best available method. |
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## Getting started |
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```sh |
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npm install --save get-proto |
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``` |
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## Usage/Examples |
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```js |
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const assert = require('assert'); |
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const getProto = require('get-proto'); |
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const a = { a: 1, b: 2, [Symbol.toStringTag]: 'foo' }; |
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const b = { c: 3, __proto__: a }; |
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assert.equal(getProto(b), a); |
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assert.equal(getProto(a), Object.prototype); |
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assert.equal(getProto({ __proto__: null }), null); |
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``` |
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## Tests |
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Clone the repo, `npm install`, and run `npm test` |
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[package-url]: https://npmjs.org/package/get-proto |
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[npm-version-svg]: https://versionbadg.es/ljharb/get-proto.svg |
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[deps-svg]: https://david-dm.org/ljharb/get-proto.svg |
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[deps-url]: https://david-dm.org/ljharb/get-proto |
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[dev-deps-svg]: https://david-dm.org/ljharb/get-proto/dev-status.svg |
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[dev-deps-url]: https://david-dm.org/ljharb/get-proto#info=devDependencies |
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[npm-badge-png]: https://nodei.co/npm/get-proto.png?downloads=true&stars=true |
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[license-image]: https://img.shields.io/npm/l/get-proto.svg |
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[license-url]: LICENSE |
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[downloads-image]: https://img.shields.io/npm/dm/get-proto.svg |
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[downloads-url]: https://npm-stat.com/charts.html?package=get-proto |
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[codecov-image]: https://codecov.io/gh/ljharb/get-proto/branch/main/graphs/badge.svg |
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[codecov-url]: https://app.codecov.io/gh/ljharb/get-proto/ |
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[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/get-proto |
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[actions-url]: https://github.com/ljharb/get-proto/actions
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