ES6 Generators

Generator is a new concept introduced to JavaScript in ECMAScript 2015 (or ES6). Generators are the new powerful tools which should be in each JavaScript developer's toolkit. Generators are mostly used in JavaScript frameworks and libraries. For example, Koa uses generators as middleware. Babel can use generators to transpile async/await functions. But generators are not commonly used in application code yet. The main reason is that generators are not easy to understand and adopt in day-to-day development.

This book focuses on real day-to-day development scenarios which can benefit from using generators.