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Introduction 简介
ECMAScript 6 is the upcoming version of the ECMAScript standard. This standard is targeting ratification in June 2015. ES6 is a significant update to the language, and the first update to the language since ES5 was standardized in 2009. Implementation of these features in major JavaScript engines is underway now.
ECMAScript 6 是 ECMAScript 的下一代标准，预计将在 2015年6月 正式发布。ES6 的发布将是是这门语言自 2009 年 ES5 正式发布以来的首次更新，是一次富有意义的更新。Javascript核心引擎的新特性仍然在快速开发中。
See the draft ES6 standard for full specification of the ECMAScript 6 language.
这里有ES6标准草案的所有细节可以参考
ES6 includes the following new features:
ES6 的具体特性如下：
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