Alex Kocharin wrote:
Still doesn't make much sense... This pattern (this instanceof ...) breaks another pattern (BaseClass.call(this)). Why first one is deprecated, not the second one?
Fair point, and a topic at the last TC39 meeting was to *finally* add a way in JS to tell whether your constructor function was called via new or directly.
I mean, I was able to subclass such a class with prototype injection without any issues, and it feels more natural in javascript after all.
You mean using `new`? Mileage varies, but I agree that client code that uses `new` well can add clarity about costs and reference uniqueness (lack of aliasing).
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