Module pattern with constructor.

main.js

    // Module pattern that creates constructor function.
    APP.utilities.Array = (function (app, global) {

        // Dependencies
        var uobj = APP.utilities.object,
            ulang = APP.utilities.lang,

        // Private properties
            Constructor;

        // Public constructor
        Constructor = function (o) {
            this.elements = this.toArray(o);
        };
        // Public API
        Constructor.prototype = {
            constructor: APP.utilities.Array,
            toArray: function (obj) {
                for ( var i = 0, a = [], len = obj.length; i < len; i += 1 ) {
                    a[i] = obj[i];
                }
                return a;
            }
        };

        return Constructor;

    }(APP, this));