[saurik]

As someone who uses JavaScriptCore in most of my projects (there is one for which I am currently intending to use v8, which is seriously "off brand" for me), and only finds Chrome usable with The Great Suspender (at which point I do use it instead of Safari for various reasons, particularly since I now use a Windows desktop ;P), I agree with you; but, everything you said seems unrelated to the topic?...

[jacobolus]

For years people have been ragging on Safari for being slightly slower to adopt new features, usually with the implication that they are holding back the web. But I think their current priorities are just fine.

I assume all of the ES2015 features will eventually see the same level of optimization as ES5-era code. I’m not too worried if it takes a few more years.