Geoffrey Sneddon wrote:
As such, we should spec it: likely block-scoped in modules, and function-scoped otherwise. We should only really not spec it if we can get everyone who currently supports it to drop it.
The TC39 group met early this year (IIRC it was the Yahoo!-hosted meeting in January) and Gavin B. of Apple agreed to try changing const to match ES6 (block-scoped everywhere), and to reserve 'let' everywhere too.
TC39 is not inclined to maximize compatibility for 'const' given non-support in IE so far, and enough non-interoperation among the other browser implementations to keep web developers from relying on it even in non-IE (if (!document.all)) code forks.
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