Douglas Crockford shares his "recipe" for creating objects in JavaScript ES6 now that he's abandoned from both 'new', 'Object.create', and prototypal inheritance. http://www.infoq.com/presentations/efficient-programming-language-es6

constructor.js

function constructor(spec) {
    let {member} = spec,
        {other} = other_constructor(spec),
        method = function () {
            // member, other, method
        };
    return Object.freeze({
        method,
        other
    });
}