No, but as someone who doesn't write JavaScript at all, I would like the JS engine that comes with a graphical web browser to be simpler than the expanding spec makes possible. I mostly browse with Lynx anyways, but there's a legitimate concern about how much browser developers are being expected to support here, and what the implications of that are.
Considering the additional syntax is sugar over stuff that is already possible, I'm not sure how much I agree... Anything newer than IE8 can run the transpiled ES5 code that BabelJS/Traceur and others pump out.
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No, but as someone who doesn't write JavaScript at all, I would like the JS engine that comes with a graphical web browser to be simpler than the expanding spec makes possible. I mostly browse with Lynx anyways, but there's a legitimate concern about how much browser developers are being expected to support here, and what the implications of that are.
Considering the additional syntax is sugar over stuff that is already possible, I'm not sure how much I agree... Anything newer than IE8 can run the transpiled ES5 code that BabelJS/Traceur and others pump out.