ECMAScript 2015 support in Mozilla - Archive of obsolete content | MDN

This is an archived page. It's not actively maintained. ECMAScript 2015 is the sixth edition of the ECMAScript Language Specification standard. It defines the standard for the JavaScript implementation in SpiderMonkey, the engine used in Firefox and other Mozilla applications. Code-named "ES.next", "Harmony", or "ECMAScript 6", the first working draft (based on ECMAScript 5.1) was published on Jul

[Rockridge]

FirefoxにおけるECMAScript 6のサポート状況。Harmonyのコードネームで呼ばれたこのJavaScriptの新仕様は、既にフィーチャーフリーズに達しており、2015年3月には正式公開の手続が開始される予定だという。

[t-wada]

Firefox の ES6 対応状況

[koba789]

フムーッ

[watilde]

FFのES6サポート状況

[teramako]

ktkr

[efcl]

ES6 MDC