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inherit

2.2.6 • Public • Published

Inherit NPM version

This module provides some syntax sugar for "class" declarations, constructors, mixins, "super" calls and static members.

Getting Started

In Node.js###

You can install using Node Package Manager (npm):

npm install inherit

In Browsers###

<script type="text/javascript" src="inherit.js"></script>

It also supports RequireJS module format and YM module format.

Module has been tested in IE6+, Mozilla Firefox 3+, Chrome 5+, Safari 5+, Opera 10+.

Specification

Creating a base class###

Function inherit(Object props);

Creating a base class with static properties###

Function inherit(
    Object props,
    Object staticProps);

Creating a derived class###

Function inherit(
    Function BaseClass,
    Object props,
    Object staticProps);

Creating a derived class with mixins###

Function inherit(
    [
        Function BaseClass,
        Function Mixin,
        Function AnotherMixin,
        ...
    ],
    Object props,
    Object staticProps);

Example

var inherit = require('inherit');
 
// base "class"
var A = inherit(/** @lends A.prototype */{
    __constructor : function(property) { // constructor
        this.property = property;
    },
 
    getProperty : function() {
        return this.property + ' of instanceA';
    },
    
    getType : function() {
        return 'A';
    },
 
    getStaticProperty : function() {
        return this.__self.staticProperty; // access to static
    }
}, /** @lends A */ {    
    staticProperty : 'staticA',
    
    staticMethod : function() {
        return this.staticProperty;
    }
});
 
// inherited "class" from A
var B = inherit(A, /** @lends B.prototype */{
    getProperty : function() { // overriding
        return this.property + ' of instanceB';
    },
    
    getType : function() { // overriding + "super" call
        return this.__base() + 'B';
    }
}, /** @lends B */ {
    staticMethod : function() { // static overriding + "super" call
        return this.__base() + ' of staticB';
    }
});
 
// mixin M
var M = inherit({
    getMixedProperty : function() {
        return 'mixed property';
    }
});
 
// inherited "class" from A with mixin M
var C = inherit([A, M], {
    getMixedProperty : function() {
        return this.__base() + ' from C';
    }
});
 
var instanceOfB = new B('property');
 
instanceOfB.getProperty(); // returns 'property of instanceB'
instanceOfB.getType(); // returns 'AB'
B.staticMethod(); // returns 'staticA of staticB'
 
var instanceOfC = new C();
instanceOfC.getMixedProperty() // returns "mixed property from C"

install

npm i inherit

Downloadsweekly downloads

103,491

version

2.2.6

license

MIT

homepage

github.com

repository

Gitgithub

last publish

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