static-extend

static-extend

Adds a static extend method to a class, to simplify inheritance. Extends the static properties, prototype properties, and descriptors from a Parent constructor onto Child constructors.

Install

Install with npm:

$ npm install static-extend --save

Usage

var extend = require('static-extend');

API

extend

Returns a function for extending the static properties, prototype properties, and descriptors from the Parent constructor onto Child constructors.

// extend "child" constructors Parent.extend(Child); // optionally define prototype methods as the second arg Parent.extend(Child, { foo: function() {}, bar: function() {} });

**Params**

* `Parent` **{Function}**: Parent ctor    
* `extendFn` **{Function}**: Optional extend function for handling any necessary custom merging. 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 = require('static-extend');
Parent.extend = extend(Parent);

// optionally pass a custom merge function as the second arg
Parent.extend = extend(Parent, function(Child) {
  Child.prototype.mixin = function(key, val) {
    Child.prototype[key] = val;
  };
});

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Building docs

Generate readme and API documentation with verb:

$ npm install verb && npm run docs

Or, if verb is installed globally:

$ verb

Running tests

Install dev dependencies:

$ npm install -d && npm test

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2016 Jon Schlinkert Released under the MIT license.

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This file was generated by verb, v0.9.0, on March 11, 2016.