[cronin101]

> let considered harmful

Did people actually use the side-effect var-hoisting intentionally within their code?

Pretty much any JS style-guide worth its salt suggests manually moving var declarations to the top of scope since it's nice to know ahead-of-time which indicators of state you should be keeping an eye on.

The idea of inspecting a variable that is later-on defined with let seems baffling to me. I can't think of any reason why you would want to do this.

[kosinus]

I tend to declare vars with their context. Especially in functions that are (unfortunately) longer than usual, having all vars at the top makes for a mess.

But I don't think the `let` syntax is going to be a problem for people who write plain JavaScript. It's more likely to it might become a problem for languages that compile to JavaScript. (For example, soak operators in CoffeeScript.)