JS.Class - Ruby-like classes for JavaScript

Singletons

A singleton class is one which can only ever have one instance. The concept is more useful in Java, where you cannot create an object without first creating a class. JavaScript allows objects without classes (indeed, it has no classes, only objects) but using JS.Singleton lets you create custom objects from existing JS.Class classes, allowing you to inherit methods, include modules and use method() et al.

        var Camel = new JS.Singleton(Animal, {
          fillHumpsWithWater: function() { ... }
        });
        
        // You can call instance methods...
        Camel.speak('the desert');    // from Animal
        Camel.fillHumpsWithWater();
        
        var s = Camel.method('speak');
        s('drinking');
        
        Camel.klass.superclass    // -> Animal

JS.Singleton just creates a class with the arguments you give it, immediately instantiates this new class and returns the instance. You can access the class through Camel.klass as shown above.

JS.Class Ruby-like classes for JavaScript

Singletons