[micheljansen]

You read my mind. I am growing tired of this "considered harmful" hype.

This title would have been warranted if there was actually a fundamental problem with JavaScript getter/setters. The idea is fine, the only problem is that presently, browsers are slow to process native getters/setters. That does not mean it will stay like that in the future (in fact, the Firefox caching feature that is mentioned in the article sounds perfect for this use case and should not be that hard to adapt).

Even if ECMAScript getters/setters were to remain slow forever, it is still a gross overstatement to say they should never be used (which is what "harmful" implies). Only in cases where performance is an issue should readability and robustness of code be sacrificed for performance gain.