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# is-accessor-descriptor [](https://www.npmjs.com/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://npmjs.org/package/is-accessor-descriptor) [](https://travis-ci.org/jonschlinkert/is-accessor-descriptor) > Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support. ## Install Install with [npm](https://www.npmjs.com/): ```sh $ npm install --save is-accessor-descriptor ``` ## Usage ```js var isAccessor = require('is-accessor-descriptor'); isAccessor({get: function() {}}); //=> true ``` You may also pass an object and property name to check if the property is an accessor: ```js isAccessor(foo, 'bar'); ``` ## Examples `false` when not an object ```js isAccessor('a') isAccessor(null) isAccessor([]) //=> false ``` `true` when the object has valid properties and the properties all have the correct JavaScript types: ```js isAccessor({get: noop, set: noop}) isAccessor({get: noop}) isAccessor({set: noop}) //=> true ``` `false` when the object has invalid properties ```js isAccessor({get: noop, set: noop, bar: 'baz'}) isAccessor({get: noop, writable: true}) isAccessor({get: noop, value: true}) //=> false ``` `false` when an accessor is not a function ```js isAccessor({get: noop, set: 'baz'}) isAccessor({get: 'foo', set: noop}) isAccessor({get: 'foo', bar: 'baz'}) isAccessor({get: 'foo', set: 'baz'}) //=> false ``` `false` when a value is not the correct type ```js isAccessor({get: noop, set: noop, enumerable: 'foo'}) isAccessor({set: noop, configurable: 'foo'}) isAccessor({get: noop, configurable: 'foo'}) //=> false ``` ## About <details> <summary><strong>Contributing</strong></summary> Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). </details> <details> <summary><strong>Running Tests</strong></summary> Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command: ```sh $ npm install && npm test ``` </details> <details> <summary><strong>Building docs</strong></summary> _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ To generate the readme, run the following command: ```sh $ npm install -g verbose/verb#dev verb-generate-readme && verb ``` </details> ### Related projects You might also be interested in these projects: * [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor "Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.") * [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor "Returns true if a value has the characteristics of a valid JavaScript data descriptor.") * [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor "Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.") * [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.") * [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.") ### Contributors | **Commits** | **Contributor** | | --- | --- | | 22 | [jonschlinkert](https://github.com/jonschlinkert) | | 2 | [realityking](https://github.com/realityking) | ### Author **Jon Schlinkert** * [github/jonschlinkert](https://github.com/jonschlinkert) * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) ### License Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). Released under the [MIT License](LICENSE). *** _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._