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- # define-property [](http://badge.fury.io/js/define-property)
- > Define a non-enumerable property on an object.
- ## Install
- Install with [npm](https://www.npmjs.com/)
- ```sh
- $ npm i define-property --save
- ```
- ## Usage
- **Params**
- * `obj`: The object on which to define the property.
- * `prop`: The name of the property to be defined or modified.
- * `descriptor`: The descriptor for the property being defined or modified.
- ```js
- var define = require('define-property');
- var obj = {};
- define(obj, 'foo', function(val) {
- return val.toUpperCase();
- });
- console.log(obj);
- //=> {}
- console.log(obj.foo('bar'));
- //=> 'BAR'
- ```
- **get/set**
- ```js
- define(obj, 'foo', {
- get: function() {},
- set: function() {}
- });
- ```
- ## Related projects
- * [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)
- * [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)
- * [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)
- * [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)
- ## Running tests
- Install dev dependencies:
- ```sh
- $ npm i -d && npm test
- ```
- ## Contributing
- Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).
- ## Author
- **Jon Schlinkert**
- + [github/jonschlinkert](https://github.com/jonschlinkert)
- + [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
- ## License
- Copyright © 2015 Jon Schlinkert
- Released under the MIT license.
- ***
- _This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._
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