As part of the "You Don’t Know JS" series, this compact guide focuses on new features available in ECMAScript 6 (ES6), the latest version of the standard upon which JavaScript is built. Learn new ES6 syntax that eases the pain points of common programming idioms. Organize code with iterators, generators, modules, and classes. Express async flow control with Promises combined with generators. Use collections to work more efficiently with data in structured waysLeverage new API helpers, including Array, Object, Math, Number, and String. Extend your program’s capabilities through meta programming.