Exploring ES6: Upgrade to the next version of JavaScript Dr. Axel Rauschmayer About the book Exploring ES6 … Contains reliable and in-depth information on ECMAScript 6, the next version of JavaScript. Is a book for people who already know JavaScript. If you are a programmer and want to learn JavaScript (up to and including ECMAScript 5), check out Axel’s book “ Speaking JavaScript ” (free online). (Even though the official name is now ECMAScript 2015, I’ll keep calling it ECMAScript 6 – for now...