JSKlass

Create classes with prototype object, static properties and mixins in JavaScript.

Getting Started

Install jsklass module.

npm install jsklass

Include jsklass and you can start work with it.

var Class = require('jsklass');
 
var Basic = Class.create();
var Extended = Basic.extend();

For example, you can create Animal class and extend it with Cat class.

var Animal = Class.create({
    init: function() {
        this.type = "Animal";
    },
 
    getType: function() {
        return this.type;
    }
});
 
var Cat = Animal.extend({
    init: function() {
        this.type = "Cat";
    }
});
 
var justAnimal = new Animal();
justAnimal.getType(); // Animal
 
var justCat = new Cat();
justCat.getType(); // Cat

API

API has simple method. When you create Class you call create method of Class object.

If you want extends then call extend in existing class.

var result = Class.create(prototype, staticProperties, [mixinsArray]);
result.extend(prototype, staticProperties, [mixinsArray]);

Examples

Working example you can find here.

Basic creating and extending

var BasicClass = Class.create(); // BasicClass -> Object
var ExtendedClass = BasicClass.extend(); // ExtendedClass -> BasicClass -> Object
var MoreExtendedClass = ExtendedClass.extend(); // MoreExtendedClass -> ExtendedClass -> BasicClass -> Object

Creating classes with methods and attributes and extend them

var Class = require('../');
 
var BasicClass = Class.create({
    type: "Basic",
 
    init: function () {
        this.foo = "bar";
    },
 
    getType: function () {
        return this.type;
    }
});
 
var ExtendedClass = BasicClass.extend({
    type: "ExtendedClass",
 
    init: function () {
        this.bar = "foo";
    }
});
 
var MoreClass = BasicClass.extend({
    type: "MoreClass"
});
 
var basic = new BasicClass();
console.log(basic.getType()); // Basic
console.log(basic.foo); // bar
 
var extended = new ExtendedClass();
console.log(extended.getType()); // ExtendedClass
console.log(extended.foo); // undefined
console.log(extended.bar); // foo
 
var more = new MoreClass();
console.log(more.getType()); // MoreClass
console.log(more.foo); // bar
console.log(more.bar); // undefined

Creating classes with prototype and static methods

var BasicClass = Class.create({}, {
    staticFoo: 'bar'
});
 
var ExtendedClass = BasicClass.extend({}, {
    staticBar: 'foo'
});
 
console.log(BasicClass.staticFoo); // bar
console.log(BasicClass.staticBar); // undefined
 
console.log(ExtendedClass.staticFoo); // undefined
console.log(ExtendedClass.staticBar); // foo

Creating classes with prototype, static and mixins

var Class = require('../');
 
var EventEmitterMixin = {
    on: function () {
        return "on";
    },
 
    off: function () {
        return "off";
    },
 
    emit: function () {
        return "emit";
    }
};
 
var OtherMixin = {
    other: function () {
        return "Other";
    }
};
 
var EventEmitter = Class.create({}, {}, [EventEmitterMixin]);
var EventEmitterAndOther = Class.create({}, {}, [EventEmitterMixin, OtherMixin]);
 
var event = new EventEmitter();
console.log(event.on()); // on
console.log(event.off()); // off
console.log(event.emit()); // emit
console.log(event.other); // undefined
 
var otherEvent = new EventEmitterAndOther();
console.log(otherEvent.on()); // on
console.log(otherEvent.off()); // off
console.log(otherEvent.emit()); // emit
console.log(otherEvent.other()); // Other

License

The MIT License (MIT)

Copyright © 2015 Eugene Obrezkov

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.