JavaScript: The New Toys

Book Description

All of JavaScript’s newest features, in depth, made easy to understand.

JavaScript is a rapidly changing language and it can be challenging to keep up with all the new toys being added. JavaScript: The New Toys explores the newest features of the world’s most popular programming language while also showing readers how to track what’s coming next. After setting the stage by covering who manages the process of improving JavaScript, how new features get introduced, terminology, and a high-level overview of new features, it details each new or updated item in depth, with example uses, possible pitfalls, and expert recommendations for updating old habits in light of new features.  JavaScript: The New Toys:

• Covers all the additions to JavaScript in ES2015-ES2019 plus a preview of ES2020 (and beyond)
• Explores the latest syntax: nullish coalescing, optional chaining, let and const, class syntax, private methods, private fields, new.target, numeric separators, BigInt, destructuring, default parameters, arrow functions, async functions, await, generator functions, ... (rest and spread), template literals, binary and octal literals, ** (exponentiation), computed property/method names, for-of, for-await-of, shorthand properties, and others
• Details the new features and patterns including modules, promises, iteration, generators, Symbol, Proxy, reflection, typed arrays, Atomics, shared memory, WeakMap, WeakSet, and more
• Highlights common pitfalls and explains how to avoid them
• Shows how to follow the improvements process and even participate in the process yourself
• Explains how to use new features even before they’re widely supported

With its comprehensive coverage and friendly, accessible style, JavaScript: The New Toys provides an invaluable resource for programmers everywhere, whether they work in web development, Node.js, Electron, Windows Universal Apps, or another JavaScript environment.

中文：

书名：JavaScript: The New Toys

所有的最新特性，从深度上讲，都很容易理解。

JavaScript是一种快速变化的语言，跟上所有添加的新玩具可能是一项挑战。脚本语：新玩具它探索了世界上最流行的编程语言的最新功能，同时也向读者展示了如何跟踪下一步是什么。在介绍了谁来管理改进的过程、如何引入新功能、术语以及新功能的高级概述之后，它深入地详细介绍了每个新的或更新的项目，并提供了示例用法、可能的陷阱以及根据新功能更新旧习惯的专家建议。

• 涵盖ES2015-ES2019中添加的所有脚本，以及ES2020(及更高版本)的预览
• 探索最新语法：Null合并、可选链接、let and const, class语法、私有方法、私有字段、New.target、数字分隔符、BigInt、析构、默认参数、箭头函数、async这些功能、功能和功能await、生成器函数、... (rest and spread), template literals, binary and octal literals, ***(求幂)、计算的属性/方法名称、*for-of, 等待-等待--、速记属性和其他
• 详细介绍了新的特性和模式，包括模块、承诺、迭代、生成器、符号、代理、反射、类型化数组、原子、共享内存、WeakMap、WeakSet等
• 重点介绍常见陷阱并解释如何避免它们
• 展示如何遵循改进过程，甚至亲自参与改进过程
• 解释如何在新功能得到广泛支持之前使用它们

凭借其全面的报道和友好、易接近的风格，脚本语：新玩具它为世界各地的程序员提供了宝贵的资源，无论他们是在Web开发、Node.js、Electron、Windows Universal Apps还是其他JavaScript环境中工作。