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# define-property [](http://badge.fury.io/js/define-property)
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> Define a non-enumerable property on an object.
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## Install
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Install with [npm](https://www.npmjs.com/)
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```sh
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$ npm i define-property --save
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```
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## Usage
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**Params**
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* `obj`: The object on which to define the property.
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* `prop`: The name of the property to be defined or modified.
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* `descriptor`: The descriptor for the property being defined or modified.
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```js
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var define = require('define-property');
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var obj = {};
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define(obj, 'foo', function(val) {
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return val.toUpperCase();
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});
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console.log(obj);
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//=> {}
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console.log(obj.foo('bar'));
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//=> 'BAR'
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```
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**get/set**
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```js
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define(obj, 'foo', {
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get: function() {},
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set: function() {}
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});
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```
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## Related projects
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* [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)
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* [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)
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* [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)
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* [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)
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## Running tests
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Install dev dependencies:
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```sh
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$ npm i -d && npm test
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```
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## Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).
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## Author
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**Jon Schlinkert**
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+ [github/jonschlinkert](https://github.com/jonschlinkert)
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+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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## License
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Copyright © 2015 Jon Schlinkert
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Released under the MIT license.
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***
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_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._
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