const VS features detection

David Herman dherman at
Mon Jan 6 08:48:31 PST 2014

On Jan 6, 2014, at 8:10 AM, Brendan Eich <brendan at> wrote:

> To further constrain design (since design is mostly about leaving things out), I will address the ES4-era |let (x = y, z = z /* outer z*/) ...| let blocks and let expressions, which came up recently. We should not revive these, given do expressions. do-exprs compose better with let and const (and other binding form) declarations.

Fully agreed.


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