1  # is-accessor-descriptor [![NPM version](https://img.shields.io/npm/v/is-accessor-descriptor.svg?style=flat)](https://www.npmjs.com/package/is-accessor-descriptor) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-accessor-descriptor.svg?style=flat)](https://npmjs.org/package/is-accessor-descriptor) [![NPM total downloads](https://img.shields.io/npm/dt/is-accessor-descriptor.svg?style=flat)](https://npmjs.org/package/is-accessor-descriptor) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-accessor-descriptor.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)
  2  
  3  > Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
  4  
  5  Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
  6  
  7  ## Install
  8  
  9  Install with [npm](https://www.npmjs.com/):
 10  
 11  ```sh
 12  $ npm install --save is-accessor-descriptor
 13  ```
 14  
 15  ## Usage
 16  
 17  ```js
 18  var isAccessor = require('is-accessor-descriptor');
 19  
 20  isAccessor({get: function() {}});
 21  //=> true
 22  ```
 23  
 24  You may also pass an object and property name to check if the property is an accessor:
 25  
 26  ```js
 27  isAccessor(foo, 'bar');
 28  ```
 29  
 30  ## Examples
 31  
 32  `false` when not an object
 33  
 34  ```js
 35  isAccessor('a')
 36  isAccessor(null)
 37  isAccessor([])
 38  //=> false
 39  ```
 40  
 41  `true` when the object has valid properties
 42  
 43  and the properties all have the correct JavaScript types:
 44  
 45  ```js
 46  isAccessor({get: noop, set: noop})
 47  isAccessor({get: noop})
 48  isAccessor({set: noop})
 49  //=> true
 50  ```
 51  
 52  `false` when the object has invalid properties
 53  
 54  ```js
 55  isAccessor({get: noop, set: noop, bar: 'baz'})
 56  isAccessor({get: noop, writable: true})
 57  isAccessor({get: noop, value: true})
 58  //=> false
 59  ```
 60  
 61  `false` when an accessor is not a function
 62  
 63  ```js
 64  isAccessor({get: noop, set: 'baz'})
 65  isAccessor({get: 'foo', set: noop})
 66  isAccessor({get: 'foo', bar: 'baz'})
 67  isAccessor({get: 'foo', set: 'baz'})
 68  //=> false
 69  ```
 70  
 71  `false` when a value is not the correct type
 72  
 73  ```js
 74  isAccessor({get: noop, set: noop, enumerable: 'foo'})
 75  isAccessor({set: noop, configurable: 'foo'})
 76  isAccessor({get: noop, configurable: 'foo'})
 77  //=> false
 78  ```
 79  
 80  ## About
 81  
 82  <details>
 83  <summary><strong>Contributing</strong></summary>
 84  
 85  Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
 86  
 87  </details>
 88  
 89  <details>
 90  <summary><strong>Running Tests</strong></summary>
 91  
 92  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:
 93  
 94  ```sh
 95  $ npm install && npm test
 96  ```
 97  
 98  </details>
 99  
100  <details>
101  <summary><strong>Building docs</strong></summary>
102  
103  _(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.)_
104  
105  To generate the readme, run the following command:
106  
107  ```sh
108  $ npm install -g verbose/verb#dev verb-generate-readme && verb
109  ```
110  
111  </details>
112  
113  ### Related projects
114  
115  You might also be interested in these projects:
116  
117  * [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.")
118  * [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.")
119  * [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.")
120  * [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.")
121  * [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.")
122  
123  ### Contributors
124  
125  | **Commits** | **Contributor** | 
126  | --- | --- |
127  | 22 | [jonschlinkert](https://github.com/jonschlinkert) |
128  | 2 | [realityking](https://github.com/realityking) |
129  
130  ### Author
131  
132  **Jon Schlinkert**
133  
134  * [github/jonschlinkert](https://github.com/jonschlinkert)
135  * [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
136  
137  ### License
138  
139  Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
140  Released under the [MIT License](LICENSE).
141  
142  ***
143  
144  _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._