Michael Theriot (2017-08-09T04:34:06.000Z)
michael.lee.theriot at gmail.com (2017-08-09T04:36:18.313Z)
Subclassing can work too. ```js class A { constructor() { this.bar = 1; this.baz = 2; if (new.target === A) Object.preventExtensions(this); } } class B extends A { constructor() { super(); this.bat = 3; if (new.target === B) Object.preventExtensions(this); } } ``` No decorator needed to do this today. I am not keeping up with decorators but @sealed implies to me that the class cannot be subclassed? At least that's what it means in C# and would confuse me if it simply meant Object.seal(this)...