Public class fields are shipping in @v8js v7.2 and Chrome 72!
Private class fields are coming soon.
https://developers.google.com/web/updates/2018/12/class-fields …pic.twitter.com/1LhVRAaMZn
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Yeah, pretty much. It avoids the need for constructors altogether, if all you want is just to create some properties. It also avoids the need for super() calls when subclassing.