Modular JavaScript: Practical Modern JavaScript

"This book explains: how JavaScript and its standards development process have evolved -- Essential ES6 changes, including arrow functions, destructuring, let, and const; class syntax for declaring object prototypes, and the Symbol primitive -- How to handle flow control with Promises, iterators, generators, and async functions -- ES6 collection built-in types for creating object maps and unique sets -- How and when to use the new Proxy and Reflect built-ins -- Changes to Array, Math, numbers, strings, Unicode, and regular expressions, and other improvements since ES5"--