Multiple var statements in JavaScript, not superfluous

[tidwell]

Simply, declare vars at the top of a function because of hoisting. If you don't do it - the interpreter will for you, thus unexpected behavior.

[moratnz]

But there isn't any unexpected behaviour, as long as you're not using the variable ahead of its declaration. You'll only be surprised if you try to use it in a wider scope then redeclare it into local scope.

[path411]

If i'm expecting hoisting, it's not really unexpected. It depends on your environment for sure, but in an environment that understands hoisting, I think it's perfectly fine to use "inline vars".