mirror of https://github.com/thangisme/notes.git
118 lines
4.5 KiB
Markdown
118 lines
4.5 KiB
Markdown
# object.omit [](https://www.npmjs.com/package/object.omit) [](https://npmjs.org/package/object.omit) [](https://npmjs.org/package/object.omit) [](https://travis-ci.org/jonschlinkert/object.omit)
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> Return a copy of an object excluding the given key, or array of keys. Also accepts an optional filter function as the last argument.
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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 object.omit
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```
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## Usage
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```js
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var omit = require('object.omit');
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```
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Pass a string `key` to omit:
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```js
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omit({a: 'a', b: 'b', c: 'c'}, 'a')
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//=> { b: 'b', c: 'c' }
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```
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Pass an array of `keys` to omit:
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```js
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omit({a: 'a', b: 'b', c: 'c'}, ['a', 'c'])
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//=> { b: 'b' }
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```
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Returns the object if no keys are passed:
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```js
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omit({a: 'a', b: 'b', c: 'c'})
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//=> {a: 'a', b: 'b', c: 'c'}
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```
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Returns an empty object if no value is passed.
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```js
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omit()
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//=> {}
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```
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### Filter function
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An optional filter function may be passed as the last argument, with or without keys passed on the arguments:
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**filter on keys**
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```js
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var res = omit({a: 'a', b: 'b', c: 'c'}, function (val, key) {
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return key === 'a';
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});
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//=> {a: 'a'}
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```
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**filter on values**
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```js
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var fn = function() {};
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var obj = {a: 'a', b: 'b', c: fn};
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var res = omit(obj, ['a'], function (val, key) {
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return typeof val !== 'function';
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});
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//=> {b: 'b'}
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```
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## About
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### Related projects
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* [object.defaults](https://www.npmjs.com/package/object.defaults): Like `extend` but only copies missing properties/values to the target object. | [homepage](https://github.com/jonschlinkert/object.defaults "Like `extend` but only copies missing properties/values to the target object.")
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* [object.filter](https://www.npmjs.com/package/object.filter): Create a new object filtered to have only properties for which the callback returns true. | [homepage](https://github.com/jonschlinkert/object.filter "Create a new object filtered to have only properties for which the callback returns true.")
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* [object.pick](https://www.npmjs.com/package/object.pick): Returns a filtered copy of an object with only the specified keys, similar to `_.pick… [more](https://github.com/jonschlinkert/object.pick) | [homepage](https://github.com/jonschlinkert/object.pick "Returns a filtered copy of an object with only the specified keys, similar to`_.pick` from lodash / underscore.")
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* [object.pluck](https://www.npmjs.com/package/object.pluck): Like pluck from underscore / lo-dash, but returns an object composed of specified properties, with… [more](https://github.com/jonschlinkert/object.pluck) | [homepage](https://github.com/jonschlinkert/object.pluck "Like pluck from underscore / lo-dash, but returns an object composed of specified properties, with values unmodified from those of the original object.")
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* [object.reduce](https://www.npmjs.com/package/object.reduce): Reduces an object to a value that is the accumulated result of running each property… [more](https://github.com/jonschlinkert/object.reduce) | [homepage](https://github.com/jonschlinkert/object.reduce "Reduces an object to a value that is the accumulated result of running each property in the object through a callback.")
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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 document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
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To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install -g verb verb-generate-readme && verb
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```
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### Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && 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](http://twitter.com/jonschlinkert)
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### License
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Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/object.omit/blob/master/LICENSE).
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***
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_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.2.0, on October 27, 2016._ |