GitHub - tc39/proposal-decorators: Decorators for ES6 classes

Decorators have three primary capabilities: They can replace the value that is being decorated with a matching value that has the same semantics. (e.g. a decorator can replace a method with another method, a field with another field, a class with another class, and so on). They can provide access to the value that is being decorated via accessor functions which they can then choose to share. They

[y-kawaz]

decoratorは便利そうだけど構文の趣味や整合性とのかねあいとか乱用するとコード追いにくいとか色々あるけど嫌いではないし悩ましい機能。

[gfx]

ES decorators がちょっと見ないうちに `decorator @foo { ... }` という構文になってる。

[efcl]

Decorator proposal move to TC39 organization.