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Exploring ES2018 and ES2019
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  • Title Exploring ES2018 and ES2019
  • Author(s) Axel Rauschmayer
  • Publisher: ExploringJS.com
  • Paperback N/A
  • eBook HTML and PDF
  • Language: English
  • ISBN-10: N/A
  • ISBN-13: N/A
  • :

Book Description

This book is about two versions of JavaScript: ECMAScript 2018 and ECMAScript 2019. It covers what’s new in both versions.

ECMAScript 2018 introduced support for asynchronous iteration via the AsyncIterator protocol and async generators. It also included four new regular expression features: the dotAll flag, named capture groups, Unicode property escapes, and look-behind assertions. Lastly it included rest parameter and spread operator support for object properties.

ECMAScript 2019 includes Object.fromEntries(), trimStart(), trimEnd(), flat(), flatMap(), description property for symbol objects, optional catch binding, and more.

  • Grasp the latest features of ECMAScript and the best way to use it in production code
  • Learn newly added native APIs to JS Engine and perform tasks efficiently with a cleaner code base
  • Understand the more complex sides of JavaScript such as the inheritance model, low-level memory management, multithreaded environments, and web workers
About the Authors
  • Dr. Axel Rauschmayer specializes in JavaScript and web development. He teaches classes for Ecmanauten, blogs at 2ality.com, holds talks and workshops at conferences and organizes the MunichJS user group.
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