mirror of
https://github.com/thangisme/notes.git
synced 2024-11-01 01:27:31 -04:00
90 lines
2.7 KiB
Markdown
90 lines
2.7 KiB
Markdown
|
# is-equal-shallow [](http://badge.fury.io/js/is-equal-shallow) [](https://travis-ci.org/jonschlinkert/is-equal-shallow)
|
||
|
|
|
||
|
|
> Does a shallow comparison of two objects, returning false if the keys or values differ.
|
||
|
|
|
||
|
|
The purpose of this lib is to do the fastest comparison possible of two objects when the values will predictably be primitives.
|
||
|
|
|
||
|
|
* only compares objects.
|
||
|
|
* only compares the first level of each object
|
||
|
|
* values must be primitives. If a value is not a primitive, even if the values are the same, `false` is returned.
|
||
|
|
|
||
|
|
Install with [npm](https://www.npmjs.com/)
|
||
|
|
|
||
|
|
```sh
|
||
|
|
$ npm i is-equal-shallow --save
|
||
|
|
```
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
var equals = require('is-equal-shallow');
|
||
|
|
equals(object_a, object_b);
|
||
|
|
```
|
||
|
|
|
||
|
|
**Examples**
|
||
|
|
|
||
|
|
```js
|
||
|
|
equals({a: true, b: true}, {a: true, b: true});
|
||
|
|
//=> 'true'
|
||
|
|
|
||
|
|
equals({a: true, b: false}, {c: false, b: false});
|
||
|
|
//=> 'false'
|
||
|
|
|
||
|
|
equals({a: true, b: false}, {a: false, b: false});
|
||
|
|
//=> 'false'
|
||
|
|
```
|
||
|
|
|
||
|
|
Strict comparison for equality:
|
||
|
|
|
||
|
|
```js
|
||
|
|
equals({a: true, b: true}, {a: true, b: 'true'});
|
||
|
|
//=> 'false'
|
||
|
|
```
|
||
|
|
|
||
|
|
When values are not primitives, `false` is always returned:
|
||
|
|
|
||
|
|
```js
|
||
|
|
equals({ b: {}}, { b: {}});
|
||
|
|
//=> 'false'
|
||
|
|
|
||
|
|
equals({ b: []}, { b: []});
|
||
|
|
//=> 'false'
|
||
|
|
```
|
||
|
|
|
||
|
|
## Related projects
|
||
|
|
|
||
|
|
Other object utils:
|
||
|
|
|
||
|
|
* [clone-deep](https://github.com/jonschlinkert/clone-deep): Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.
|
||
|
|
* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)
|
||
|
|
* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)
|
||
|
|
* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.
|
||
|
|
* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.
|
||
|
|
|
||
|
|
## 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/is-equal-shallow/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 June 22, 2015._
|