Foreword
Kyle Simpson is a thorough pragmatist.
I canât think of higher praise than this. To me, these are two of the most important qualities that a software developer must have. Thatâs right: must, not should. Kyleâs keen ability to tease apart layers of the JavaScript programming language and present them in understandable and meaningful portions is second to none.
ES6 & Beyond will be familiar to readers of the You Donât Know JS series: they can expect to be deeply immersed in everything from the obvious, to the very subtleârevealing semantics that were either taken for granted or never even considered. Until now, the You Donât Know JS book series has covered material that has at least some degree of familiarity to its readers. They have either seen or heard about the subject matter; they may even have experience with it. This volume covers material that only a very small portion of the JavaScript developer community has been exposed to: the evolutionary changes to the language introduced in the ECMAScript 2015 Language Specification.
Over the last couple years, Iâve witnessed Kyleâs tireless efforts to familiarize himself with this material to a level of expertise that is rivaled by only a handful of his professional peers. Thatâs quite a feat, considering that at the time of this writing, the language specification document hasnât been formally published! But what Iâve said is true, and Iâve read every word that Kyleâs written for this book. Iâve followed every change, and each time, the content only gets better and provides yet a deeper level of understanding.
This book is about shaking up your sense of understanding by exposing you to the new and unknown. The intention is to evolve your knowledge in step with your tools by bestowing you with new capabilities. It exists to give you the confidence to fully embrace the next major era of JavaScript programming.
Get You Don't Know JS: ES6 & Beyond now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.