دانلود کتاب Understanding ECMAScript 6. The definitive guide for Javascript developers

ECMAScript 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.