https://github.com/75lb/create-mixin

For achieving something resembling multiple-inheritence in Javascript
https://github.com/75lb/create-mixin

Last synced: 12 months ago
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For achieving something resembling multiple-inheritence in Javascript

• Host: GitHub
• URL: https://github.com/75lb/create-mixin
• Owner: 75lb
• License: mit
• Created: 2018-05-27T11:46:44.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2023-09-03T13:31:45.000Z (almost 3 years ago)
• Last Synced: 2025-08-09T03:55:21.613Z (12 months ago)
• Language: JavaScript
• Homepage:
• Size: 47.9 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# create-mixin

Useful for achieving something resembling multiple-inheritence in Javascript.

```js

const mixInto = require('create-mixin')

const EventEmitter = require('events')

class EmittingArray extends mixInto(EventEmitter)(Array) {}

```

## Example

Given these two classes.

```js

class Base {

  constructor () {

    this.ranBaseConstructor = true

  }

  baseMethod () {

    return 1

  }

}

class Mixin {

  constructor () {

    this.ranMixinConstructor = true

  }

  someMethod () {

    return 2

  }

}

```

Create a new class mixing one class into another.

```js

> const mixInto = require('create-mixin')

> class Something extends mixInto(Mixin)(Base) {}

```

Behaviour of new class.

```js

> const something = new Something()

> /* new class has methods of both source classes */

> something.baseMethod()

1

> something.someMethod()

2

> /* Only the base constructor is run */

> something.ranBaseConstructor

true

> something.ranMixinConstructor

undefined

> something instanceof Base

true

> something instanceof Mixin

false

```

* * *

© 2018-19 Lloyd Brookes \<75pound@gmail.com\>.