since `let (foo = 42) { ... }` is not coming to ES6 after all...

gistfile1.md

I hereby propose this form of let usage as the next best option, since the clearly better let (foo = 42) { ... } let-block-statement syntax is dead and not coming to ES6:

/*let*/ { let foo = 42;

   // your code that uses `foo`

}

Yes, you need to put a comment on the line, and use the white-space as I've shown, so you get as close to a let-block semantic as possible. Yes, you should use the naked blocks even if you are already using them inside if or for blocks.

Oh, and btw, if you want to use let right now (and not wait for ES6), check out BlockScoper.ify().