JavaScript curly braces with no function or json

Question

Just opened a client\'s javascript file and the first lines are along the lines of this:

{
    var s_account=\"blog\";
}

Which I don\'t get

Answer 1

Can anyone tell me why there are curly braces with no text before them or after them? What does it do / what is the point of it?

There is no significant point to them in Javascript. It will act exactly the same as if the code was just

var  s_account="blog";

Speculation

In other languages which have block scope, this might restrict the scope of the variable, but since JS doesn't have that feature (for better or worse), braces without a control structure or function are essentially meaningless and ignored.

Most likely this code was left over from a deleted function or if statement however. It definitely is not a pattern to be copied.