95 lines
3.6 KiB
Markdown
95 lines
3.6 KiB
Markdown
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# define-property [](https://www.npmjs.com/package/define-property) [](https://npmjs.org/package/define-property) [](https://npmjs.org/package/define-property) [](https://travis-ci.org/jonschlinkert/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 install --save define-property
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```
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Install with [yarn](https://yarnpkg.com):
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```sh
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$ yarn add define-property
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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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## About
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### Related projects
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* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep "Deeply assign the enumerable properties and/or es6 Symbol properies of source objects to the target (first) object.")
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* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow "Extend an object with the properties of additional objects. node.js/javascript util.")
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* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep "Recursively merge values in a javascript 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 "Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone.")
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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](../../issues/new).
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### Building docs
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_(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.)_
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To generate the readme, run the following command:
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```sh
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$ npm install -g verbose/verb#dev verb-generate-readme && verb
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```
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### Running tests
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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:
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```sh
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$ npm install && npm test
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```
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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](https://twitter.com/jonschlinkert)
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### License
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Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT License](LICENSE).
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***
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_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.5.0, on April 20, 2017._
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