This project is deprecated and no longer maintained. It is better to use ES6 Classes plus Babel instead.
A lightweight JavaScript Class framework
The purpose of this framework is to be lightweight (< 1K when minified) and clean, but offering full OO support, including subclassing, inheritance and so. There are better class JS frameworks out there, but this is an exercise to see if I can make something simple but powerful enough for a real app.
- Download Minified version available in
distfolder - To include it in a web application:
- Copy
dist/Class.min.jswhere your javascripts are placed - Include it in your index.html as:
<script type="text/javascript" src="PATH_TO_YOUR_JS/Class.min.js"></script>
- Copy
- To include it in a Node.js app:
- Copy
dist/Class.min.jswhere your javascripts are placed - Import it with
var Class = require('PATH_TO_YOUR_JS/Class.min.js');
- Copy
Create an empty class
var Empty = Class();
var instance = new Empty(); // Do nothing
Create a class with only a constructor
var Simple = Class({
constructor: function() {
alert("Hello World!");
}
});
var instance = new Simple(); // alert "Hello world!"
Create a class with constructor, methods and context handling
var Car = Class({
constructor: function(manufacturer, model) {
this.manufacturer = manufacturer;
this.model = model;
},
toString: function() {
return this.manufacturer + " " + this.model;
}
});
var honda = new Car("Honda", "Civic");
honda.toString(); // will return "Honda Civic"
Basic inheritance with _super support to call parent methods
var HybridCar = Class(Car, {
// Overrides Car.toString
toString: function() {
return this._super() + ' Hybrid';
}
});
var hybrid = new HybridCar("Honda", "Civic");
hybrid.toString(); // will return "Honda Civic Hybrid"
Chained inheritance is also supported
var MyAwesomeCar = Class(HybridCar, {
constructor: function(manufacturer, model, speed) {
this._super(manufacturer, model);
this.speed = speed;
},
getSpeed: function() {
return this.speed;
},
toString: function() {
return this._super() + ' is Awesome';
}
});
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