restrictions on let declarations

Brendan Eich brendan at mozilla.com
Thu Jan 30 12:49:54 PST 2014


John Lenz wrote:
> I don't argue that it isn't a useless "let".  I do point out that in 
> "sloppy" mode, that other declaration are allow in practices by 
> browsers.  Chrome allows function, const, and var in the body of an if 
> without block.

But those aren't useless.

They are quirky, but they do not bind in the consequent only, which is 
exactly what you and John said you wanted for if(x)let y=z.

/be


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