Level up your JavaScriptECMAScript 6 represents the biggest update to the core of JavaScript in the history of the language. In Understanding ECMAScript 6, expert developer Nicholas C. Zakas provides a complete guide to the object types, syntax, and other exciting changes that ECMAScript 6 brings to JavaScript. Every chapter is packed with example code that works in any JavaScript environment so you ll be able to see new features in action. You ll learn: - How ECMAScript 6 class syntax relates to more familiar JavaScript concepts- What makes iterators and generators useful- How arrow functions differ from regular functions- Ways to store data with sets, maps, and more- The power of inheritance- How to improve asynchronous programming with promises- How modules change the way you organize codeWhether you re a web developer or a Node.js developer, you ll find Understanding ECMAScript 6 indispensable on your journey from ECMAScript 5 to ECMAScript 6.