JavaScript Just-In-Time Subclass Prototype Initialization

/*
 * A JavaScript code pattern for deferred/just-in-time subclass prototype initialization.
 * Author: Brian Katzung
 * See: https://www.kappacs.com/javascript-just-in-time-subclass-prototype-initialization/
 */
function Class () {
    var c = Class;
    return c.$c.call(this, arguments[0] !== c && arguments);
}
Class.$c = function (args) { // JIT 1x class init helper
    // var c = Class, p = c.prototype; // "Base" classes (Object subclasses)
    var s = SuperClass, c = Class, p = c.prototype = new s(s); // Subclasses
    p.constructor = c; // Subclasses
    c.$c = function (args) { return this.$i(args); }; // Post-init helper
    p.$i = c.$i = function (args) { // Instance init helper
        s.$i.call(this, args); // Subclasses
        if (!args) return this; // Skip init on false
        // Add this.properties here
        return this;
    };
    // Add p.methods here
    // return this.$i(args); // Base classes (original prototype)
    return new c(c).$i(args); // Subclasses (altered prototype)
};