Question

// util/model.js

define(['util/class'], function(classCtor) {
    return classCtor.create({
        set: function(key, value) {
            // this doesn't work, because self is pointing to window
            if (value instanceof self) {
                // do Something
            }
        }
    });
});

This should be the base class of all my entitys. Because my modules are written in RequireJS style, i’m able to use the following workaround:

if (value instanceof require('util/model'))

This works fine, but now my code is coupled to the ModuleName. Any suggestions how to avoid this coupling?
By the way: I use the prototype-based helper from Steffen Rusitschka to build my classes

Answer 1

You could just use a variable for your anonymous class:

define(['util/class'], function(classCtor) {
    var self = classCtor.create({
        set: function(key, value) {
            // self is the class now:
            if (value instanceof self) {
                // do Something
            }
        }
    });
    return self;
});