How I write my javascript!

codeStyle.js

(function (global) {
    "use strict";

    // namespace
    global.Space = {
        entities: {}
    };

    // class
    global.Space.entities.UserEntity = function (theName, theAge) {
        // private properties
        var name,
            age;

        // construct
        this.construct = function (theName, theAge) {
            this.setName(theName);
            this.setAge(theAge);
        };

        // public methods
        this.setName = function (theName) {
            if (
                ! theName instanceof String
                || ! (typeof theName === 'string')
            ) {
                throw new TypeError("Name must be a String!");
            }

            var l = theName.length;
            if (l < 3 || l > 60) {
                throw new RangeError("Name must be between 3-60!")
            }

            name = theName;
        }

        this.getName = function () {
            return name;
        };

        this.setAge = function (theAge) {
            if (
                ! theAge instanceof Number
                || ! (typeof theAge === 'number')
            ) {
                throw new TypeError("Age must be a Number!");
            }

            if (theAge < 15 || theAge > 120) {
                throw new RangeError("Age must be between 15-120!")
            }

            age = theAge;
        };

        this.getAge = function () {
            return age;
        };

        // call constructor
        this.construct(theName, theAge);
    };
    
})(global);

usingCodeStyle.js

// ...
JavaScript.loadScript('codeStyle.js');

// Use
// another Scope
(function () {
    "use strict";

    try {
	var user = new Space.entities.UserEntity("Felipe", 20);
        console.log(user.getName());
        console.log(user.getAge());

    } catch (error) {
        console.log("Exception:");
        console.log(error);
    }

})();