Comment #29 on issue 2198 by RetroModular: Implement block scoping
https://code.google.com/p/v8/issues/detail?id=2198

Is there are open issue regarding the stack-allocation of `let` and `const`? I searched through the issues here but failed to find anything.

In a nutshell, `let` and `const` are not stack-allocated at the moment and are therefore extremely slow when compared to `var`, approximately 30 times slower.

Canary 43.0.2341.0
Chrome 42.0.2311.50 beta-m

Thanks :)

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