mirror of
https://github.com/actions/setup-python.git
synced 2024-11-23 17:17:36 +00:00
300 lines
No EOL
7.7 KiB
Markdown
300 lines
No EOL
7.7 KiB
Markdown
# class-utils [](https://www.npmjs.com/package/class-utils) [](https://npmjs.org/package/class-utils) [](https://npmjs.org/package/class-utils) [](https://travis-ci.org/jonschlinkert/class-utils)
|
|
|
|
> Utils for working with JavaScript classes and prototype methods.
|
|
|
|
Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
|
|
|
|
## Install
|
|
|
|
Install with [npm](https://www.npmjs.com/):
|
|
|
|
```sh
|
|
$ npm install --save class-utils
|
|
```
|
|
|
|
## Usage
|
|
|
|
```js
|
|
var cu = require('class-utils');
|
|
```
|
|
|
|
## API
|
|
|
|
### [.has](index.js#L43)
|
|
|
|
Returns true if an array has any of the given elements, or an object has any of the give keys.
|
|
|
|
**Params**
|
|
|
|
* `obj` **{Object}**
|
|
* `val` **{String|Array}**
|
|
* `returns` **{Boolean}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
cu.has(['a', 'b', 'c'], 'c');
|
|
//=> true
|
|
|
|
cu.has(['a', 'b', 'c'], ['c', 'z']);
|
|
//=> true
|
|
|
|
cu.has({a: 'b', c: 'd'}, ['c', 'z']);
|
|
//=> true
|
|
```
|
|
|
|
### [.hasAll](index.js#L90)
|
|
|
|
Returns true if an array or object has all of the given values.
|
|
|
|
**Params**
|
|
|
|
* `val` **{Object|Array}**
|
|
* `values` **{String|Array}**
|
|
* `returns` **{Boolean}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
cu.hasAll(['a', 'b', 'c'], 'c');
|
|
//=> true
|
|
|
|
cu.hasAll(['a', 'b', 'c'], ['c', 'z']);
|
|
//=> false
|
|
|
|
cu.hasAll({a: 'b', c: 'd'}, ['c', 'z']);
|
|
//=> false
|
|
```
|
|
|
|
### [.arrayify](index.js#L117)
|
|
|
|
Cast the given value to an array.
|
|
|
|
**Params**
|
|
|
|
* `val` **{String|Array}**
|
|
* `returns` **{Array}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
cu.arrayify('foo');
|
|
//=> ['foo']
|
|
|
|
cu.arrayify(['foo']);
|
|
//=> ['foo']
|
|
```
|
|
|
|
### [.hasConstructor](index.js#L152)
|
|
|
|
Returns true if a value has a `contructor`
|
|
|
|
**Params**
|
|
|
|
* `value` **{Object}**
|
|
* `returns` **{Boolean}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
cu.hasConstructor({});
|
|
//=> true
|
|
|
|
cu.hasConstructor(Object.create(null));
|
|
//=> false
|
|
```
|
|
|
|
### [.nativeKeys](index.js#L174)
|
|
|
|
Get the native `ownPropertyNames` from the constructor of the given `object`. An empty array is returned if the object does not have a constructor.
|
|
|
|
**Params**
|
|
|
|
* `obj` **{Object}**: Object that has a `constructor`.
|
|
* `returns` **{Array}**: Array of keys.
|
|
|
|
**Example**
|
|
|
|
```js
|
|
cu.nativeKeys({a: 'b', b: 'c', c: 'd'})
|
|
//=> ['a', 'b', 'c']
|
|
|
|
cu.nativeKeys(function(){})
|
|
//=> ['length', 'caller']
|
|
```
|
|
|
|
### [.getDescriptor](index.js#L208)
|
|
|
|
Returns property descriptor `key` if it's an "own" property of the given object.
|
|
|
|
**Params**
|
|
|
|
* `obj` **{Object}**
|
|
* `key` **{String}**
|
|
* `returns` **{Object}**: Returns descriptor `key`
|
|
|
|
**Example**
|
|
|
|
```js
|
|
function App() {}
|
|
Object.defineProperty(App.prototype, 'count', {
|
|
get: function() {
|
|
return Object.keys(this).length;
|
|
}
|
|
});
|
|
cu.getDescriptor(App.prototype, 'count');
|
|
// returns:
|
|
// {
|
|
// get: [Function],
|
|
// set: undefined,
|
|
// enumerable: false,
|
|
// configurable: false
|
|
// }
|
|
```
|
|
|
|
### [.copyDescriptor](index.js#L238)
|
|
|
|
Copy a descriptor from one object to another.
|
|
|
|
**Params**
|
|
|
|
* `receiver` **{Object}**
|
|
* `provider` **{Object}**
|
|
* `name` **{String}**
|
|
* `returns` **{Object}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
function App() {}
|
|
Object.defineProperty(App.prototype, 'count', {
|
|
get: function() {
|
|
return Object.keys(this).length;
|
|
}
|
|
});
|
|
var obj = {};
|
|
cu.copyDescriptor(obj, App.prototype, 'count');
|
|
```
|
|
|
|
### [.copy](index.js#L264)
|
|
|
|
Copy static properties, prototype properties, and descriptors
|
|
from one object to another.
|
|
|
|
**Params**
|
|
|
|
* `receiver` **{Object}**
|
|
* `provider` **{Object}**
|
|
* `omit` **{String|Array}**: One or more properties to omit
|
|
* `returns` **{Object}**
|
|
|
|
### [.inherit](index.js#L299)
|
|
|
|
Inherit the static properties, prototype properties, and descriptors
|
|
from of an object.
|
|
|
|
**Params**
|
|
|
|
* `receiver` **{Object}**
|
|
* `provider` **{Object}**
|
|
* `omit` **{String|Array}**: One or more properties to omit
|
|
* `returns` **{Object}**
|
|
|
|
### [.extend](index.js#L343)
|
|
|
|
Returns a function for extending the static properties, prototype properties, and descriptors from the `Parent` constructor onto `Child` constructors.
|
|
|
|
**Params**
|
|
|
|
* `Parent` **{Function}**: Parent ctor
|
|
* `extend` **{Function}**: Optional extend function to handle custom extensions. Useful when updating methods that require a specific prototype.
|
|
* `Child` **{Function}**: Child ctor
|
|
* `proto` **{Object}**: Optionally pass additional prototype properties to inherit.
|
|
* `returns` **{Object}**
|
|
|
|
**Example**
|
|
|
|
```js
|
|
var extend = cu.extend(Parent);
|
|
Parent.extend(Child);
|
|
|
|
// optional methods
|
|
Parent.extend(Child, {
|
|
foo: function() {},
|
|
bar: function() {}
|
|
});
|
|
```
|
|
|
|
### [.bubble](index.js#L356)
|
|
|
|
Bubble up events emitted from static methods on the Parent ctor.
|
|
|
|
**Params**
|
|
|
|
* `Parent` **{Object}**
|
|
* `events` **{Array}**: Event names to bubble up
|
|
|
|
## About
|
|
|
|
<details>
|
|
<summary><strong>Contributing</strong></summary>
|
|
|
|
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
|
|
|
|
</details>
|
|
|
|
<details>
|
|
<summary><strong>Running Tests</strong></summary>
|
|
|
|
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:
|
|
|
|
```sh
|
|
$ npm install && npm test
|
|
```
|
|
|
|
</details>
|
|
<details>
|
|
<summary><strong>Building docs</strong></summary>
|
|
|
|
_(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.)_
|
|
|
|
To generate the readme, run the following command:
|
|
|
|
```sh
|
|
$ npm install -g verbose/verb#dev verb-generate-readme && verb
|
|
```
|
|
|
|
</details>
|
|
|
|
### Related projects
|
|
|
|
You might also be interested in these projects:
|
|
|
|
* [define-property](https://www.npmjs.com/package/define-property): Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty. | [homepage](https://github.com/jonschlinkert/define-property "Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.")
|
|
* [delegate-properties](https://www.npmjs.com/package/delegate-properties): Deep-clone properties from one object to another and make them non-enumerable, or make existing properties… [more](https://github.com/jonschlinkert/delegate-properties) | [homepage](https://github.com/jonschlinkert/delegate-properties "Deep-clone properties from one object to another and make them non-enumerable, or make existing properties on an object non-enumerable.")
|
|
* [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor "Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.")
|
|
|
|
### Contributors
|
|
|
|
| **Commits** | **Contributor** |
|
|
| --- | --- |
|
|
| 34 | [jonschlinkert](https://github.com/jonschlinkert) |
|
|
| 8 | [doowb](https://github.com/doowb) |
|
|
| 2 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
|
|
|
|
### Author
|
|
|
|
**Jon Schlinkert**
|
|
|
|
* [linkedin/in/jonschlinkert](https://linkedin.com/in/jonschlinkert)
|
|
* [github/jonschlinkert](https://github.com/jonschlinkert)
|
|
* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
|
|
|
|
### License
|
|
|
|
Copyright © 2018, [Jon Schlinkert](https://github.com/jonschlinkert).
|
|
Released under the [MIT License](LICENSE).
|
|
|
|
***
|
|
|
|
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on January 11, 2018._ |